SlideShare a Scribd company logo
1 of 1
Download to read offline
8-9 Which gene (C or D) is downstream in the pathway based on the epistatic class for feeding
behavior? Gene C gene D Feeding Experiment: If methionine is added to the growth media of
these mutant strains, all of them can grow. Some of them can intermediates in the synthesis of
methionine are added. The intermediates include homocysteine, cysteine and cystathionine. In
the table below the growth behavior (+ or -) of the methionine auxotrophs are shown when each
strain is fed different compounds. Using this table, order the synthesis of intermediates from first
to last in the synthesis of methionine Order of intermediates: ---- rightarrow _________ ----
rightarrow _________ ---- rightarrow _________ methionine Above each arrow indicate where
each mutant (met A, B or Cor D) belongs. ---- rightarrow _________ ---- rightarrow
_________ ---- rightarrow _________ methionine What intermediate builds up in the met A
strain? _________ what intermediate builds up in the met C strain? __________ What
intermediate builds up in the met D strain?
Solution
1.The gene D is downstream in the process.
2.cysteine - cystathionine - homocysteine - methionine.
3.The first arrow represent strain B, the second arrow represent strain C, the third arrow
represent strain D and fourth arrow represent strain A.

More Related Content

More from arihantplastictanksh

Expand upon selectionSortType so that you are no longer bound to a l.pdf
Expand upon selectionSortType so that you are no longer bound to a l.pdfExpand upon selectionSortType so that you are no longer bound to a l.pdf
Expand upon selectionSortType so that you are no longer bound to a l.pdf
arihantplastictanksh
 
describe the three major categorical theories of language developmen.pdf
describe the three major categorical theories of language developmen.pdfdescribe the three major categorical theories of language developmen.pdf
describe the three major categorical theories of language developmen.pdf
arihantplastictanksh
 
Compare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdf
Compare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdfCompare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdf
Compare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdf
arihantplastictanksh
 
case study of a female with a parasitic disease Here is a Microbiolog.pdf
case study of a female with a parasitic disease Here is a Microbiolog.pdfcase study of a female with a parasitic disease Here is a Microbiolog.pdf
case study of a female with a parasitic disease Here is a Microbiolog.pdf
arihantplastictanksh
 
are marine multicellular protists belonging to the larger brown alg.pdf
are marine multicellular protists belonging to the larger brown alg.pdfare marine multicellular protists belonging to the larger brown alg.pdf
are marine multicellular protists belonging to the larger brown alg.pdf
arihantplastictanksh
 
18. Identify (at least 5) and explain their meanings of reducing ble.pdf
18. Identify (at least 5) and explain their meanings of reducing ble.pdf18. Identify (at least 5) and explain their meanings of reducing ble.pdf
18. Identify (at least 5) and explain their meanings of reducing ble.pdf
arihantplastictanksh
 
Which THREE of the following statements about autotrophs and heterot.pdf
Which THREE of the following statements about autotrophs and heterot.pdfWhich THREE of the following statements about autotrophs and heterot.pdf
Which THREE of the following statements about autotrophs and heterot.pdf
arihantplastictanksh
 
1. Baking a potato takes a long time, even when cooking uses differe.pdf
1. Baking a potato takes a long time, even when cooking uses differe.pdf1. Baking a potato takes a long time, even when cooking uses differe.pdf
1. Baking a potato takes a long time, even when cooking uses differe.pdf
arihantplastictanksh
 

More from arihantplastictanksh (20)

Expand upon selectionSortType so that you are no longer bound to a l.pdf
Expand upon selectionSortType so that you are no longer bound to a l.pdfExpand upon selectionSortType so that you are no longer bound to a l.pdf
Expand upon selectionSortType so that you are no longer bound to a l.pdf
 
describe the three major categorical theories of language developmen.pdf
describe the three major categorical theories of language developmen.pdfdescribe the three major categorical theories of language developmen.pdf
describe the three major categorical theories of language developmen.pdf
 
Compare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdf
Compare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdfCompare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdf
Compare the capabilities of the Microsoft Access, Microsoft SQL Serv.pdf
 
case study of a female with a parasitic disease Here is a Microbiolog.pdf
case study of a female with a parasitic disease Here is a Microbiolog.pdfcase study of a female with a parasitic disease Here is a Microbiolog.pdf
case study of a female with a parasitic disease Here is a Microbiolog.pdf
 
are marine multicellular protists belonging to the larger brown alg.pdf
are marine multicellular protists belonging to the larger brown alg.pdfare marine multicellular protists belonging to the larger brown alg.pdf
are marine multicellular protists belonging to the larger brown alg.pdf
 
4. Belief in God Religion Studies researchers were interested in ma.pdf
4. Belief in God Religion Studies researchers were interested in ma.pdf4. Belief in God Religion Studies researchers were interested in ma.pdf
4. Belief in God Religion Studies researchers were interested in ma.pdf
 
18. Identify (at least 5) and explain their meanings of reducing ble.pdf
18. Identify (at least 5) and explain their meanings of reducing ble.pdf18. Identify (at least 5) and explain their meanings of reducing ble.pdf
18. Identify (at least 5) and explain their meanings of reducing ble.pdf
 
With enough money, energy, and political will, the nations of the wo.pdf
With enough money, energy, and political will, the nations of the wo.pdfWith enough money, energy, and political will, the nations of the wo.pdf
With enough money, energy, and political will, the nations of the wo.pdf
 
Which members of the truss are zero-force members Solutionass.pdf
Which members of the truss are zero-force members  Solutionass.pdfWhich members of the truss are zero-force members  Solutionass.pdf
Which members of the truss are zero-force members Solutionass.pdf
 
Which THREE of the following statements about autotrophs and heterot.pdf
Which THREE of the following statements about autotrophs and heterot.pdfWhich THREE of the following statements about autotrophs and heterot.pdf
Which THREE of the following statements about autotrophs and heterot.pdf
 
What type of biometric error signifies that an authorized user has b.pdf
What type of biometric error signifies that an authorized user has b.pdfWhat type of biometric error signifies that an authorized user has b.pdf
What type of biometric error signifies that an authorized user has b.pdf
 
What is an unintended medical consequences What is an example of on.pdf
What is an unintended medical consequences What is an example of on.pdfWhat is an unintended medical consequences What is an example of on.pdf
What is an unintended medical consequences What is an example of on.pdf
 
What is the best explanation for large smooth regions on Saturns m.pdf
What is the best explanation for large smooth regions on Saturns m.pdfWhat is the best explanation for large smooth regions on Saturns m.pdf
What is the best explanation for large smooth regions on Saturns m.pdf
 
Thirty students recorded the colors of their eyes, choosing from the.pdf
Thirty students recorded the colors of their eyes, choosing from the.pdfThirty students recorded the colors of their eyes, choosing from the.pdf
Thirty students recorded the colors of their eyes, choosing from the.pdf
 
The probability that a randomly selected adult owns an e-reader is 0..pdf
The probability that a randomly selected adult owns an  e-reader is 0..pdfThe probability that a randomly selected adult owns an  e-reader is 0..pdf
The probability that a randomly selected adult owns an e-reader is 0..pdf
 
The following tables relates degree of interest in political electio.pdf
The following tables relates degree of interest in political electio.pdfThe following tables relates degree of interest in political electio.pdf
The following tables relates degree of interest in political electio.pdf
 
1. Baking a potato takes a long time, even when cooking uses differe.pdf
1. Baking a potato takes a long time, even when cooking uses differe.pdf1. Baking a potato takes a long time, even when cooking uses differe.pdf
1. Baking a potato takes a long time, even when cooking uses differe.pdf
 
The amount of phospahtidylinositol-4,5-bisphosphate in the membrane .pdf
The amount of phospahtidylinositol-4,5-bisphosphate in the membrane .pdfThe amount of phospahtidylinositol-4,5-bisphosphate in the membrane .pdf
The amount of phospahtidylinositol-4,5-bisphosphate in the membrane .pdf
 
Steps Involved in documenting patient records efficiently in EHR. Yo.pdf
Steps Involved in documenting patient records efficiently in EHR. Yo.pdfSteps Involved in documenting patient records efficiently in EHR. Yo.pdf
Steps Involved in documenting patient records efficiently in EHR. Yo.pdf
 
1. Let R be the event that it is a rainy day and let U be the event t.pdf
1. Let R be the event that it is a rainy day and let U be the event t.pdf1. Let R be the event that it is a rainy day and let U be the event t.pdf
1. Let R be the event that it is a rainy day and let U be the event t.pdf
 

Recently uploaded

Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPSSpellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
AnaAcapella
 

Recently uploaded (20)

Interdisciplinary_Insights_Data_Collection_Methods.pptx
Interdisciplinary_Insights_Data_Collection_Methods.pptxInterdisciplinary_Insights_Data_Collection_Methods.pptx
Interdisciplinary_Insights_Data_Collection_Methods.pptx
 
Details on CBSE Compartment Exam.pptx1111
Details on CBSE Compartment Exam.pptx1111Details on CBSE Compartment Exam.pptx1111
Details on CBSE Compartment Exam.pptx1111
 
How to Add a Tool Tip to a Field in Odoo 17
How to Add a Tool Tip to a Field in Odoo 17How to Add a Tool Tip to a Field in Odoo 17
How to Add a Tool Tip to a Field in Odoo 17
 
21st_Century_Skills_Framework_Final_Presentation_2.pptx
21st_Century_Skills_Framework_Final_Presentation_2.pptx21st_Century_Skills_Framework_Final_Presentation_2.pptx
21st_Century_Skills_Framework_Final_Presentation_2.pptx
 
Exploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptx
Exploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptxExploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptx
Exploring_the_Narrative_Style_of_Amitav_Ghoshs_Gun_Island.pptx
 
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptxCOMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
 
How to Manage Call for Tendor in Odoo 17
How to Manage Call for Tendor in Odoo 17How to Manage Call for Tendor in Odoo 17
How to Manage Call for Tendor in Odoo 17
 
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptxHMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
 
SOC 101 Demonstration of Learning Presentation
SOC 101 Demonstration of Learning PresentationSOC 101 Demonstration of Learning Presentation
SOC 101 Demonstration of Learning Presentation
 
Understanding Accommodations and Modifications
Understanding  Accommodations and ModificationsUnderstanding  Accommodations and Modifications
Understanding Accommodations and Modifications
 
Philosophy of china and it's charactistics
Philosophy of china and it's charactisticsPhilosophy of china and it's charactistics
Philosophy of china and it's charactistics
 
General Principles of Intellectual Property: Concepts of Intellectual Proper...
General Principles of Intellectual Property: Concepts of Intellectual  Proper...General Principles of Intellectual Property: Concepts of Intellectual  Proper...
General Principles of Intellectual Property: Concepts of Intellectual Proper...
 
FSB Advising Checklist - Orientation 2024
FSB Advising Checklist - Orientation 2024FSB Advising Checklist - Orientation 2024
FSB Advising Checklist - Orientation 2024
 
Basic Intentional Injuries Health Education
Basic Intentional Injuries Health EducationBasic Intentional Injuries Health Education
Basic Intentional Injuries Health Education
 
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPSSpellings Wk 4 and Wk 5 for Grade 4 at CAPS
Spellings Wk 4 and Wk 5 for Grade 4 at CAPS
 
latest AZ-104 Exam Questions and Answers
latest AZ-104 Exam Questions and Answerslatest AZ-104 Exam Questions and Answers
latest AZ-104 Exam Questions and Answers
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
Single or Multiple melodic lines structure
Single or Multiple melodic lines structureSingle or Multiple melodic lines structure
Single or Multiple melodic lines structure
 
80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...
80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...
80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...
 
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
 

8-9 Which gene (C or D) is downstream in the pathway based on the ep.pdf

  • 1. 8-9 Which gene (C or D) is downstream in the pathway based on the epistatic class for feeding behavior? Gene C gene D Feeding Experiment: If methionine is added to the growth media of these mutant strains, all of them can grow. Some of them can intermediates in the synthesis of methionine are added. The intermediates include homocysteine, cysteine and cystathionine. In the table below the growth behavior (+ or -) of the methionine auxotrophs are shown when each strain is fed different compounds. Using this table, order the synthesis of intermediates from first to last in the synthesis of methionine Order of intermediates: ---- rightarrow _________ ---- rightarrow _________ ---- rightarrow _________ methionine Above each arrow indicate where each mutant (met A, B or Cor D) belongs. ---- rightarrow _________ ---- rightarrow _________ ---- rightarrow _________ methionine What intermediate builds up in the met A strain? _________ what intermediate builds up in the met C strain? __________ What intermediate builds up in the met D strain? Solution 1.The gene D is downstream in the process. 2.cysteine - cystathionine - homocysteine - methionine. 3.The first arrow represent strain B, the second arrow represent strain C, the third arrow represent strain D and fourth arrow represent strain A.