DNA contains the instructions for development, life, and reproduction. It is a double-stranded helix made of nucleotides. Each nucleotide contains a phosphate, sugar (deoxyribose in DNA), and one of four nitrogenous bases: adenine, cytosine, guanine, or thymine. The strands are held together by hydrogen bonds between complementary base pairs, with adenine bonding to thymine and cytosine bonding to guanine. DNA stores genetic information, directs protein synthesis, determines genetic coding, and is responsible for heredity and cell functions.
Genetic code, Deciphering of genetic code, properties of genetic code, Initiation & termination of codons, Gene Mutation, non sense codon, release factors, Transition , Trans versions
Genetic code, Deciphering of genetic code, properties of genetic code, Initiation & termination of codons, Gene Mutation, non sense codon, release factors, Transition , Trans versions
Replication Introduction , DNA replicating Models , Meselson and Stahl Experiments , Circuler Model of DNA replication , Replication in Prokaryotes , Replication In Eukaryotes , Comparison Between Prokaryotes and Eukaryotes Replicaton and PCR (Polymerease Chain Reaction)
A DNA library is a collection of cloned restriction fragments of the DNA of an organism.
Two kinds of libraries will be discussed: genomic libraries and complementary DNA (cDNA) libraries.
Genomic libraries ideally contain a copy of every DNA nucleotide sequence in the genome.
In contrast, cDNA libraries contain those DNA sequences that appear as mRNA molecules, and these differ from one cell type to another.
This Presentation will be helpful to undergraduate and postgraduate students of biology and biotechnology in understanding the significance of COT curves in determination of gene and genome complexity amoug various organisms
RNA- A polymer of ribonucleotides, is a single stranded structure. There are three major types of RNA- m RNA,t RNA and r RNA. Besides that there are small nuclear,micro RNAs, small interfering and heterogeneous RNAs. Each of them has a specific structure and performs a specific function.
Replication Introduction , DNA replicating Models , Meselson and Stahl Experiments , Circuler Model of DNA replication , Replication in Prokaryotes , Replication In Eukaryotes , Comparison Between Prokaryotes and Eukaryotes Replicaton and PCR (Polymerease Chain Reaction)
A DNA library is a collection of cloned restriction fragments of the DNA of an organism.
Two kinds of libraries will be discussed: genomic libraries and complementary DNA (cDNA) libraries.
Genomic libraries ideally contain a copy of every DNA nucleotide sequence in the genome.
In contrast, cDNA libraries contain those DNA sequences that appear as mRNA molecules, and these differ from one cell type to another.
This Presentation will be helpful to undergraduate and postgraduate students of biology and biotechnology in understanding the significance of COT curves in determination of gene and genome complexity amoug various organisms
RNA- A polymer of ribonucleotides, is a single stranded structure. There are three major types of RNA- m RNA,t RNA and r RNA. Besides that there are small nuclear,micro RNAs, small interfering and heterogeneous RNAs. Each of them has a specific structure and performs a specific function.
Nucleic Acids
DNA
Eukaryotic Chromosomes
The Histones
Deoxynucleic acid ( DNA )
Importance of Nucleotides
Base pairing
Denaturation and Renaturation
Determination GC content
Prokaryotic DNA synthesis
Prokaryotic DNA Replication
Transcription
Coding Strand and Template Strand
Steps of RNA synthesize
Unit 1 genetics nucleic acids DNA (1) Biology aid Lassie sibanda
These slides will help those who love biology but yet find it so hard to break down see how easy and interesting life science is. hope these improve your knowledge
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
2. DNA
• DNA stands for Deoxyribonucleic acid which is a
molecule that contains the instructions an organism
needs to develop, live and reproduce.
• These instructions are found inside every cell and are
passed down from parents to their children.
• It is a nucleic acid and is one of the four major types
of macromolecules that are known to be essential for
all forms of life.
• DNA is found in the nucleus, with a small amount of
DNA also present in mitochondria in the eukaryotes.
6. Chemical Structure of DNA:
• DNA is a double-stranded helix. That is each DNA molecule is
comprised of two biopolymer strands coiling around each other to
form a double helix structure. These two DNA strands are called
polynucleotides, as they are made of simpler monomer units called
nucleotides.
• Each strand has a 5′end (with a phosphate group) and a 3′end (with a
hydroxyl group).
• The strands are antiparallel, meaning that one strand runs in a 5′to
3′direction, while the other strand runs in a 3′ to 5′ direction.
• The two strands are held together by hydrogen bonds and are
complimentary to each other.
• Basically, the DNA is composed of deoxyribonucleotides.
• The deoxyribonucleotides are linked together by 3′ – 5′phosphodiester
bonds.
7. • The nitrogenous bases that compose the
deoxyribonucleotides include adenine, cytosine,
thymine, and guanine.
• The complimentary of the strands are due to the nature
of the nitrogenous bases. The base adenine always
interacts with a thymine (A-T) on the opposite strand via
two hydrogen bonds and cytosine always interacts with
guanine (C-G) via three hydrogen bonds on the opposite
strand.
• The shape of the helix is stabilized by hydrogen bonding
and hydrophobic interactions between bases.
• The diameter of double helix is 2nm and the double
helical structure repeats at an interval of 3.4nm which
corresponds to ten base pairs.
11. Major and Minor groove
• As a result of the double helical nature of DNA, the
molecule has two asymmetric grooves. One groove is
smaller than the other.
• The larger groove is called the major groove, occurs when
the backbones are far apart; while the smaller one is called
the minor groove, occurs when they are close together.
• Since the major and minor grooves expose the edges of the
bases, the grooves can be used to tell the base sequence of a
specific DNA molecule.
• The possibility for such recognition is critical, since proteins
must be able to recognize specific DNA sequences on which
to bind in order for the proper functions of the body and cell
to be carried out.
12. Property of DNA
• DNA helices can be right handed or left handed. But the
B – conformation of DNA having the right handed
helices is the most stable.
• On heating the two strands of DNA separate from each
other and on cooling these again hybridize.
• The temperature at which the two strands separate
completely is known as melting temperature (Tm).
Melting temperature is specific for
each specific sequence.
• The B sample of DNA having higher melting point must
have more C-G content because C-G pair has 3 hydrogen
bonds.
• The sequence of bases along the DNA molecule encodes
for the sequence of amino acids in every protein in all
organisms.
13. TYPES OF DNA
• Eukaryotic organisms such as animals, plants and fungi, store the majority
of their DNA inside the cell nucleus and some of their DNA in organelles
such as mitochondria.
• Based on the location DNA may be:
• Nuclear DNA
• Located within the nucleus of eukaryote cells.
• Usually has two copies per cell.
• The structure of nuclear DNA chromosomes is linear with open ends and
includes 46 chromosomes containing 3 billion nucleotides.
• Nuclear DNA is diploid, ordinarily inheriting the DNA from two parents.
The mutation rate for nuclear DNA is less than 0.3%.
• Mitochondrial DNA
• Mitochondrial DNA is located in the mitochondria.
• Contains 100-1,000 copies per cell.
• Mitochondrial DNA chromosomes usually have closed, circular structures,
and contain for example 16,569 nucleotides in human.
• Mitochondrial DNA is haploid, coming only from the mother.
• The mutation rate for mitochondrial DNA is generally higher than nuclear
DNA.
15. • Most of the DNA is in the classic Watson-Crick model simply
called as B-DNA.
• In certain condition, different forms of DNAs are found to be
appeared like A-DNA,Z-DNA,C- DNA,D-DNA,E-DNA.
B-DNA: It is right handed structure. It have 10bp per turn and 2nm
diameter.
A-DNA: It is right handed structure. Conformation of sugar structure
is different from B-DNA. It have 11bp per turn and 2.3nm
diameter.
Z-DNA: It is left handed structure. It have 12bp per turn and 1.8nm
diameter.
C-DNA: It is right handed structure. It have 33bp per turn and
11.9nm diameter.
E-DNA: It is Extended or Ecentric DNA. It is the intermediate
between B-DNA to A- DNA.
D-DNA: It is right handed structure. It have 8bp per turn.
16. • DNA has a crucial role as genetic material in most living
organisms. It carries genetic information from cell to cell
and from generation to generation.
• Thus its major functions include:
• Storing genetic information
• Directing protein synthesis
• Determining genetic coding
• Directly responsible for metabolic activities, evolution,
heredity, and differentiation.
• It is a stable molecule and holds more complex information
for longer periods of time.
Function Of DNA