SlideShare a Scribd company logo
Most alleles of the Drosophila cut (ct) gene are stable. For example, all progeny from crossing
ct1 to ct2 to yield ct1 /ct2 heterozygotes have "cut" wings. ct1 is a strong allele with severe
cutting of the wings. ct2 and another allele, ctMR2, are weaker with only moderate cutting of the
wings. When ctMR2 homozygotes are crossed to ct1 homozygotes, three kinds of progeny are
produced, 95% have a moderate cutting of the wings (as expected for ctMR2 / ct1 ), 2.5% have
wild-type wings and 2.5% have more severe cut wings like ct1 homozygotes. a) How do you
explain the high frequency of reversion to wild-type? b) How do you explain the high frequency
of progeny with the more severe cut phenotype?
Solution
B) high frequency of phenotype for the more severe cut progeny can be explained by a dominant
epistasis. Epistasis, is a type of GENE interaction but not allele interaction. Here one gene either
masks or modifies the expression of the other gene . The gene that masks the expression is called
EPISTATIC and the gene that is getting masked or modified is called the HYPOSTATIC gene.
Epistasis is a gene interaction and not an allele interaction, in this way it is different from
dominance. In epistasis, the ratio turns out to be less than 4 , as in an usual Di hybrid cross.
A) the occurrence of the wild type wing is also due to the epistatic nature of the ct1 gene, which
expresses itself , regardless of the second gene. In case where there are no Dominant alleles of
the ct1 gene and also, none of the ctMR2 gene, the reversion to the wild type gene could be seen
as none of the other alleles would express themselves.

More Related Content

Similar to Most alleles of the Drosophila cut (ct) gene are stable. For example.pdf

Genetics From Genes to Genomes 6th Edition hartwell Solutions Manual
Genetics From Genes to Genomes 6th Edition hartwell Solutions ManualGenetics From Genes to Genomes 6th Edition hartwell Solutions Manual
Genetics From Genes to Genomes 6th Edition hartwell Solutions Manual
KadeemGardner
 
Gene definition
Gene definitionGene definition
Gene definition
8860340768arup
 
Roque
RoqueRoque
Homozygous Alleles
Homozygous AllelesHomozygous Alleles
Homozygous Alleles
Patricia Johnson
 
Mendel's law
Mendel's lawMendel's law
Mendel's law
RAJENDRACHAVHAN2
 
Mendelism.pptx
Mendelism.pptxMendelism.pptx
Mendelism.pptx
DhimanDutta3
 
Genetics
Genetics Genetics
Genetics
Jessica Tidmore
 
Mendelian genetics power_point
Mendelian genetics power_pointMendelian genetics power_point
Mendelian genetics power_point
RajeshwariTiwari2
 
Genetics : Mendel's Law of Inheritance
Genetics : Mendel's Law of InheritanceGenetics : Mendel's Law of Inheritance
Genetics : Mendel's Law of Inheritance
Manisha Siwach
 
Monohybrid Cross Complete Dominance
Monohybrid Cross Complete DominanceMonohybrid Cross Complete Dominance
Monohybrid Cross Complete Dominance
roeslerbarb
 
INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...
INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...
INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...
SaraAnwar18
 
Modification of Normal Mendelian ratios with Lethal gene effcets and Epistasis
Modification of Normal Mendelian ratios with Lethal gene effcets and EpistasisModification of Normal Mendelian ratios with Lethal gene effcets and Epistasis
Modification of Normal Mendelian ratios with Lethal gene effcets and Epistasis
Aashish Patel
 
GENETICS.pptx
GENETICS.pptxGENETICS.pptx
GENETICS.pptx
REECHBOLKUOLREECH
 
GENE INTERACTIONS SMG
GENE INTERACTIONS    SMGGENE INTERACTIONS    SMG
GENE INTERACTIONS SMG
sajigeorge64
 
Genetics std 12th biology NEET
Genetics std 12th biology NEETGenetics std 12th biology NEET
Genetics std 12th biology NEET
Nirav Soni
 
Hour 2
Hour 2Hour 2
Hour 2
Hour 2Hour 2
Hour 2
syaheer77
 
Chromosomal abeeration
Chromosomal abeerationChromosomal abeeration
Chromosomal abeeration
Aashish Patel
 
Complementation
ComplementationComplementation
Complementation
Sidra Saleem
 
General Biology 2 - Lesson 1: Pedigree Analysis
General Biology 2 - Lesson 1: Pedigree Analysis General Biology 2 - Lesson 1: Pedigree Analysis
General Biology 2 - Lesson 1: Pedigree Analysis
marvinnbustamante1
 

Similar to Most alleles of the Drosophila cut (ct) gene are stable. For example.pdf (20)

Genetics From Genes to Genomes 6th Edition hartwell Solutions Manual
Genetics From Genes to Genomes 6th Edition hartwell Solutions ManualGenetics From Genes to Genomes 6th Edition hartwell Solutions Manual
Genetics From Genes to Genomes 6th Edition hartwell Solutions Manual
 
Gene definition
Gene definitionGene definition
Gene definition
 
Roque
RoqueRoque
Roque
 
Homozygous Alleles
Homozygous AllelesHomozygous Alleles
Homozygous Alleles
 
Mendel's law
Mendel's lawMendel's law
Mendel's law
 
Mendelism.pptx
Mendelism.pptxMendelism.pptx
Mendelism.pptx
 
Genetics
Genetics Genetics
Genetics
 
Mendelian genetics power_point
Mendelian genetics power_pointMendelian genetics power_point
Mendelian genetics power_point
 
Genetics : Mendel's Law of Inheritance
Genetics : Mendel's Law of InheritanceGenetics : Mendel's Law of Inheritance
Genetics : Mendel's Law of Inheritance
 
Monohybrid Cross Complete Dominance
Monohybrid Cross Complete DominanceMonohybrid Cross Complete Dominance
Monohybrid Cross Complete Dominance
 
INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...
INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...
INHERTANCE PATTEREN IN ANMALS,SEGREGATION ,INDEPENDENT ASSORTMENT,MULTIPLE AL...
 
Modification of Normal Mendelian ratios with Lethal gene effcets and Epistasis
Modification of Normal Mendelian ratios with Lethal gene effcets and EpistasisModification of Normal Mendelian ratios with Lethal gene effcets and Epistasis
Modification of Normal Mendelian ratios with Lethal gene effcets and Epistasis
 
GENETICS.pptx
GENETICS.pptxGENETICS.pptx
GENETICS.pptx
 
GENE INTERACTIONS SMG
GENE INTERACTIONS    SMGGENE INTERACTIONS    SMG
GENE INTERACTIONS SMG
 
Genetics std 12th biology NEET
Genetics std 12th biology NEETGenetics std 12th biology NEET
Genetics std 12th biology NEET
 
Hour 2
Hour 2Hour 2
Hour 2
 
Hour 2
Hour 2Hour 2
Hour 2
 
Chromosomal abeeration
Chromosomal abeerationChromosomal abeeration
Chromosomal abeeration
 
Complementation
ComplementationComplementation
Complementation
 
General Biology 2 - Lesson 1: Pedigree Analysis
General Biology 2 - Lesson 1: Pedigree Analysis General Biology 2 - Lesson 1: Pedigree Analysis
General Biology 2 - Lesson 1: Pedigree Analysis
 

More from RBMADU

Between 2000 and 2002, then again from 2008 to 2010, access measures.pdf
Between 2000 and 2002, then again from 2008 to 2010, access measures.pdfBetween 2000 and 2002, then again from 2008 to 2010, access measures.pdf
Between 2000 and 2002, then again from 2008 to 2010, access measures.pdf
RBMADU
 
Below is a diagram of the coding strand of DNA showing a gene please .pdf
Below is a diagram of the coding strand of DNA showing a gene please .pdfBelow is a diagram of the coding strand of DNA showing a gene please .pdf
Below is a diagram of the coding strand of DNA showing a gene please .pdf
RBMADU
 
A patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdf
A patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdfA patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdf
A patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdf
RBMADU
 
Write a program to recognizing Idenifier Or Constant in C language.pdf
Write a program to recognizing Idenifier Or Constant in C language.pdfWrite a program to recognizing Idenifier Or Constant in C language.pdf
Write a program to recognizing Idenifier Or Constant in C language.pdf
RBMADU
 
Why having a lipid rich cell wall make a bacteria harder to stain.pdf
Why having a lipid rich cell wall make a bacteria harder to stain.pdfWhy having a lipid rich cell wall make a bacteria harder to stain.pdf
Why having a lipid rich cell wall make a bacteria harder to stain.pdf
RBMADU
 
Which of the following statements about leasing is falseALease fina.pdf
Which of the following statements about leasing is falseALease fina.pdfWhich of the following statements about leasing is falseALease fina.pdf
Which of the following statements about leasing is falseALease fina.pdf
RBMADU
 
using the single linked list code written in the class or in the lab,.pdf
using the single linked list code written in the class or in the lab,.pdfusing the single linked list code written in the class or in the lab,.pdf
using the single linked list code written in the class or in the lab,.pdf
RBMADU
 
A database management system is also referred to as a database. True.pdf
A database management system is also referred to as a database.  True.pdfA database management system is also referred to as a database.  True.pdf
A database management system is also referred to as a database. True.pdf
RBMADU
 
An envolope contains three cards A black card that is black on both.pdf
An envolope contains three cards A black card that is black on both.pdfAn envolope contains three cards A black card that is black on both.pdf
An envolope contains three cards A black card that is black on both.pdf
RBMADU
 
There was a mass extinction of plants and animals at the end of the P.pdf
There was a mass extinction of plants and animals at the end of the P.pdfThere was a mass extinction of plants and animals at the end of the P.pdf
There was a mass extinction of plants and animals at the end of the P.pdf
RBMADU
 
The size P of a certain insect population at time t (in days) obeys t.pdf
The size P of a certain insect population at time t (in days) obeys t.pdfThe size P of a certain insect population at time t (in days) obeys t.pdf
The size P of a certain insect population at time t (in days) obeys t.pdf
RBMADU
 
The fundamental theory of electromagnetic field is based on Maxwell.pdf
The fundamental theory of electromagnetic field is based on Maxwell.pdfThe fundamental theory of electromagnetic field is based on Maxwell.pdf
The fundamental theory of electromagnetic field is based on Maxwell.pdf
RBMADU
 
Part I – Antibiotics and the Human Microbiome Amelia and her family .pdf
Part I – Antibiotics and the Human Microbiome Amelia and her family .pdfPart I – Antibiotics and the Human Microbiome Amelia and her family .pdf
Part I – Antibiotics and the Human Microbiome Amelia and her family .pdf
RBMADU
 
Recall the Squeeze TheoremSuppose that for all n, xn yn zn. If .pdf
Recall the Squeeze TheoremSuppose that for all n, xn  yn  zn. If .pdfRecall the Squeeze TheoremSuppose that for all n, xn  yn  zn. If .pdf
Recall the Squeeze TheoremSuppose that for all n, xn yn zn. If .pdf
RBMADU
 
Since somathesthetic sensation from each side of the body projects t.pdf
Since somathesthetic sensation from each side of the body projects t.pdfSince somathesthetic sensation from each side of the body projects t.pdf
Since somathesthetic sensation from each side of the body projects t.pdf
RBMADU
 
Say whether each of the following statements is true (“T”) or false .pdf
Say whether each of the following statements is true (“T”) or false .pdfSay whether each of the following statements is true (“T”) or false .pdf
Say whether each of the following statements is true (“T”) or false .pdf
RBMADU
 
Research and identify three IT-related Risk Management Plans and lis.pdf
Research and identify three IT-related Risk Management Plans and lis.pdfResearch and identify three IT-related Risk Management Plans and lis.pdf
Research and identify three IT-related Risk Management Plans and lis.pdf
RBMADU
 
please help me with two partI Bold it out as wrong part which in t.pdf
please help me with two partI Bold it out as wrong part which in t.pdfplease help me with two partI Bold it out as wrong part which in t.pdf
please help me with two partI Bold it out as wrong part which in t.pdf
RBMADU
 
Matching. Choose the most appropriate answer from the right. 1. Null .pdf
Matching. Choose the most appropriate answer from the right. 1. Null .pdfMatching. Choose the most appropriate answer from the right. 1. Null .pdf
Matching. Choose the most appropriate answer from the right. 1. Null .pdf
RBMADU
 
Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf
Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdfNumerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf
Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf
RBMADU
 

More from RBMADU (20)

Between 2000 and 2002, then again from 2008 to 2010, access measures.pdf
Between 2000 and 2002, then again from 2008 to 2010, access measures.pdfBetween 2000 and 2002, then again from 2008 to 2010, access measures.pdf
Between 2000 and 2002, then again from 2008 to 2010, access measures.pdf
 
Below is a diagram of the coding strand of DNA showing a gene please .pdf
Below is a diagram of the coding strand of DNA showing a gene please .pdfBelow is a diagram of the coding strand of DNA showing a gene please .pdf
Below is a diagram of the coding strand of DNA showing a gene please .pdf
 
A patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdf
A patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdfA patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdf
A patient has a tidal volume of 0.50 L, a frequency of breathing or r.pdf
 
Write a program to recognizing Idenifier Or Constant in C language.pdf
Write a program to recognizing Idenifier Or Constant in C language.pdfWrite a program to recognizing Idenifier Or Constant in C language.pdf
Write a program to recognizing Idenifier Or Constant in C language.pdf
 
Why having a lipid rich cell wall make a bacteria harder to stain.pdf
Why having a lipid rich cell wall make a bacteria harder to stain.pdfWhy having a lipid rich cell wall make a bacteria harder to stain.pdf
Why having a lipid rich cell wall make a bacteria harder to stain.pdf
 
Which of the following statements about leasing is falseALease fina.pdf
Which of the following statements about leasing is falseALease fina.pdfWhich of the following statements about leasing is falseALease fina.pdf
Which of the following statements about leasing is falseALease fina.pdf
 
using the single linked list code written in the class or in the lab,.pdf
using the single linked list code written in the class or in the lab,.pdfusing the single linked list code written in the class or in the lab,.pdf
using the single linked list code written in the class or in the lab,.pdf
 
A database management system is also referred to as a database. True.pdf
A database management system is also referred to as a database.  True.pdfA database management system is also referred to as a database.  True.pdf
A database management system is also referred to as a database. True.pdf
 
An envolope contains three cards A black card that is black on both.pdf
An envolope contains three cards A black card that is black on both.pdfAn envolope contains three cards A black card that is black on both.pdf
An envolope contains three cards A black card that is black on both.pdf
 
There was a mass extinction of plants and animals at the end of the P.pdf
There was a mass extinction of plants and animals at the end of the P.pdfThere was a mass extinction of plants and animals at the end of the P.pdf
There was a mass extinction of plants and animals at the end of the P.pdf
 
The size P of a certain insect population at time t (in days) obeys t.pdf
The size P of a certain insect population at time t (in days) obeys t.pdfThe size P of a certain insect population at time t (in days) obeys t.pdf
The size P of a certain insect population at time t (in days) obeys t.pdf
 
The fundamental theory of electromagnetic field is based on Maxwell.pdf
The fundamental theory of electromagnetic field is based on Maxwell.pdfThe fundamental theory of electromagnetic field is based on Maxwell.pdf
The fundamental theory of electromagnetic field is based on Maxwell.pdf
 
Part I – Antibiotics and the Human Microbiome Amelia and her family .pdf
Part I – Antibiotics and the Human Microbiome Amelia and her family .pdfPart I – Antibiotics and the Human Microbiome Amelia and her family .pdf
Part I – Antibiotics and the Human Microbiome Amelia and her family .pdf
 
Recall the Squeeze TheoremSuppose that for all n, xn yn zn. If .pdf
Recall the Squeeze TheoremSuppose that for all n, xn  yn  zn. If .pdfRecall the Squeeze TheoremSuppose that for all n, xn  yn  zn. If .pdf
Recall the Squeeze TheoremSuppose that for all n, xn yn zn. If .pdf
 
Since somathesthetic sensation from each side of the body projects t.pdf
Since somathesthetic sensation from each side of the body projects t.pdfSince somathesthetic sensation from each side of the body projects t.pdf
Since somathesthetic sensation from each side of the body projects t.pdf
 
Say whether each of the following statements is true (“T”) or false .pdf
Say whether each of the following statements is true (“T”) or false .pdfSay whether each of the following statements is true (“T”) or false .pdf
Say whether each of the following statements is true (“T”) or false .pdf
 
Research and identify three IT-related Risk Management Plans and lis.pdf
Research and identify three IT-related Risk Management Plans and lis.pdfResearch and identify three IT-related Risk Management Plans and lis.pdf
Research and identify three IT-related Risk Management Plans and lis.pdf
 
please help me with two partI Bold it out as wrong part which in t.pdf
please help me with two partI Bold it out as wrong part which in t.pdfplease help me with two partI Bold it out as wrong part which in t.pdf
please help me with two partI Bold it out as wrong part which in t.pdf
 
Matching. Choose the most appropriate answer from the right. 1. Null .pdf
Matching. Choose the most appropriate answer from the right. 1. Null .pdfMatching. Choose the most appropriate answer from the right. 1. Null .pdf
Matching. Choose the most appropriate answer from the right. 1. Null .pdf
 
Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf
Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdfNumerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf
Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf
 

Recently uploaded

spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skillsspot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
haiqairshad
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
adhitya5119
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
National Information Standards Organization (NISO)
 
PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.
Dr. Shivangi Singh Parihar
 
Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
paigestewart1632
 
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movieFilm vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
Nicholas Montgomery
 
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRMHow to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Celine George
 
The History of Stoke Newington Street Names
The History of Stoke Newington Street NamesThe History of Stoke Newington Street Names
The History of Stoke Newington Street Names
History of Stoke Newington
 
writing about opinions about Australia the movie
writing about opinions about Australia the moviewriting about opinions about Australia the movie
writing about opinions about Australia the movie
Nicholas Montgomery
 
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Diana Rendina
 
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
Nguyen Thanh Tu Collection
 
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit InnovationLeveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
TechSoup
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Excellence Foundation for South Sudan
 
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
imrankhan141184
 
clinical examination of hip joint (1).pdf
clinical examination of hip joint (1).pdfclinical examination of hip joint (1).pdf
clinical examination of hip joint (1).pdf
Priyankaranawat4
 
How to deliver Powerpoint Presentations.pptx
How to deliver Powerpoint  Presentations.pptxHow to deliver Powerpoint  Presentations.pptx
How to deliver Powerpoint Presentations.pptx
HajraNaeem15
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
Dr. Mulla Adam Ali
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Academy of Science of South Africa
 
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
WaniBasim
 
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
สมใจ จันสุกสี
 

Recently uploaded (20)

spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skillsspot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
 
PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.
 
Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
 
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movieFilm vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
 
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRMHow to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
 
The History of Stoke Newington Street Names
The History of Stoke Newington Street NamesThe History of Stoke Newington Street Names
The History of Stoke Newington Street Names
 
writing about opinions about Australia the movie
writing about opinions about Australia the moviewriting about opinions about Australia the movie
writing about opinions about Australia the movie
 
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
 
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
 
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit InnovationLeveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
 
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
 
clinical examination of hip joint (1).pdf
clinical examination of hip joint (1).pdfclinical examination of hip joint (1).pdf
clinical examination of hip joint (1).pdf
 
How to deliver Powerpoint Presentations.pptx
How to deliver Powerpoint  Presentations.pptxHow to deliver Powerpoint  Presentations.pptx
How to deliver Powerpoint Presentations.pptx
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
 
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
 
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
 

Most alleles of the Drosophila cut (ct) gene are stable. For example.pdf

  • 1. Most alleles of the Drosophila cut (ct) gene are stable. For example, all progeny from crossing ct1 to ct2 to yield ct1 /ct2 heterozygotes have "cut" wings. ct1 is a strong allele with severe cutting of the wings. ct2 and another allele, ctMR2, are weaker with only moderate cutting of the wings. When ctMR2 homozygotes are crossed to ct1 homozygotes, three kinds of progeny are produced, 95% have a moderate cutting of the wings (as expected for ctMR2 / ct1 ), 2.5% have wild-type wings and 2.5% have more severe cut wings like ct1 homozygotes. a) How do you explain the high frequency of reversion to wild-type? b) How do you explain the high frequency of progeny with the more severe cut phenotype? Solution B) high frequency of phenotype for the more severe cut progeny can be explained by a dominant epistasis. Epistasis, is a type of GENE interaction but not allele interaction. Here one gene either masks or modifies the expression of the other gene . The gene that masks the expression is called EPISTATIC and the gene that is getting masked or modified is called the HYPOSTATIC gene. Epistasis is a gene interaction and not an allele interaction, in this way it is different from dominance. In epistasis, the ratio turns out to be less than 4 , as in an usual Di hybrid cross. A) the occurrence of the wild type wing is also due to the epistatic nature of the ct1 gene, which expresses itself , regardless of the second gene. In case where there are no Dominant alleles of the ct1 gene and also, none of the ctMR2 gene, the reversion to the wild type gene could be seen as none of the other alleles would express themselves.