Q1. Choose the most correct answer(10pts): 1
... 5-The conclusion of Griffith(1928) experiment is: a-Heat-killed S bacteria(virulent) transform Live R bacteria(avirulent) into S ones All the best, Dr. Raida Khalil ...
... 5-The conclusion of Griffith(1928) experiment is: a-Heat-killed S bacteria(virulent) transform Live R bacteria(avirulent) into S ones All the best, Dr. Raida Khalil ...
biology name
... 7. What is the name of the sugar in DNA? ________________________________________ 8. What is the name of the sugar in RNA? ________________________________________ 9. What is the site of protein synthesis? ___________________ 10. The ___RNA from the nucleus attaches to the RNA on the ribosome while ...
... 7. What is the name of the sugar in DNA? ________________________________________ 8. What is the name of the sugar in RNA? ________________________________________ 9. What is the site of protein synthesis? ___________________ 10. The ___RNA from the nucleus attaches to the RNA on the ribosome while ...
chromosomes, genes and dna
... The sugars and phosphate groups are on the outside of the molecule forming the "sugar-phosphate backbone". Each sugar is attached to the phosphate below by a “covalent” bond. The bases project into the middle and the base on one strand attaches to the base on the other strand by 2 or 3 "hydrogen bon ...
... The sugars and phosphate groups are on the outside of the molecule forming the "sugar-phosphate backbone". Each sugar is attached to the phosphate below by a “covalent” bond. The bases project into the middle and the base on one strand attaches to the base on the other strand by 2 or 3 "hydrogen bon ...
Lecture 3
... • A chromosome is essentially a long strand of DNA wound around proteins; e.g. histones, to form condensed structure called chromatin. • However it order for the DNA to carry out its function is must be unwound from the proteins: chromatin to a long strand of DNA • This DNA is shaped in the form of, ...
... • A chromosome is essentially a long strand of DNA wound around proteins; e.g. histones, to form condensed structure called chromatin. • However it order for the DNA to carry out its function is must be unwound from the proteins: chromatin to a long strand of DNA • This DNA is shaped in the form of, ...
Chapter 8
... DNA replication makes a copy of the cell’s genetic information so that one of these copies can be passed on during cell division. 6. What factors stabilize the DNA double helix? The double helix is stabilized because nitrogenous bases are only able to match up (pair) with certain other nucleotides o ...
... DNA replication makes a copy of the cell’s genetic information so that one of these copies can be passed on during cell division. 6. What factors stabilize the DNA double helix? The double helix is stabilized because nitrogenous bases are only able to match up (pair) with certain other nucleotides o ...
The Double Helix video notes
... 6) In 1928, Frederick Griffith conducted an experiment in which he injected mice with different kinds of bacteria. When bacteria that cause disease (pathogenic) were injected in healthy mice, these mice got sick and died. Other types of bacteria (nonpathogenic) did not cause the mice to die. Griffit ...
... 6) In 1928, Frederick Griffith conducted an experiment in which he injected mice with different kinds of bacteria. When bacteria that cause disease (pathogenic) were injected in healthy mice, these mice got sick and died. Other types of bacteria (nonpathogenic) did not cause the mice to die. Griffit ...
DNA - Bishop Ireton High School
... • Cytosine binds to Guanine • A-T-T-G-G-C-G-T-A strands are bound to • T-A-A-C-C-G-C-A-T each other by H bonds ...
... • Cytosine binds to Guanine • A-T-T-G-G-C-G-T-A strands are bound to • T-A-A-C-C-G-C-A-T each other by H bonds ...
Introduction to DNA - University of Dayton
... Intro to DNA • Chromosomes exist in “matching pairs” in the nucleus of a cell • Scientists call the matching pairs “homologous pairs”. • In every human body cell, there are 23 homologous pairs of chromosomes. ...
... Intro to DNA • Chromosomes exist in “matching pairs” in the nucleus of a cell • Scientists call the matching pairs “homologous pairs”. • In every human body cell, there are 23 homologous pairs of chromosomes. ...
The Genetic Code - Marengo Community Middle School
... molecular meaning • Universal: same code used by all organisms on earth • Triplet: 3 bases = one “word” • Unambiguous: each triplet has only one meaning • Degenerate: individual amino acids may be called for by more than one triplet (this is also referred to as redundant) ...
... molecular meaning • Universal: same code used by all organisms on earth • Triplet: 3 bases = one “word” • Unambiguous: each triplet has only one meaning • Degenerate: individual amino acids may be called for by more than one triplet (this is also referred to as redundant) ...
2 Types of Selective Breeding
... 1) Selective Breeding – a process of selecting a few organisms with _______________ to serve as parents of the ___________ EX: Cows that ___________ milk, vegetables that _____________ 2 Types of Selective Breeding 1) ____________________ – crossing 2 individuals with similar sets of genes to produc ...
... 1) Selective Breeding – a process of selecting a few organisms with _______________ to serve as parents of the ___________ EX: Cows that ___________ milk, vegetables that _____________ 2 Types of Selective Breeding 1) ____________________ – crossing 2 individuals with similar sets of genes to produc ...
Day 2 (Jan. 23) Scribe Notes
... by introns. Sometimes regions I, II, and IV might be spliced together, to make up form 1. At other times regions II, III, and IV might be spliced together to make up form 2. So far it appears that the average number of alternate splicings of any given region is three or four. Some regions can only b ...
... by introns. Sometimes regions I, II, and IV might be spliced together, to make up form 1. At other times regions II, III, and IV might be spliced together to make up form 2. So far it appears that the average number of alternate splicings of any given region is three or four. Some regions can only b ...
DNA Structure and Replication Notes
... •Okazaki fragment – the pieces that are formed in the lagging strand, because replication can only occur in the 3’ to 5’ direction as the DNA is unwound. ...
... •Okazaki fragment – the pieces that are formed in the lagging strand, because replication can only occur in the 3’ to 5’ direction as the DNA is unwound. ...
Protein Synthesis
... Enzymes bring in Nucleotide bases pairs (base pairing – A-T and C-G) Enzymes bring in sugar-phosphate backbone Start with 1 DNA get 2 identical DNA Unless mutation ...
... Enzymes bring in Nucleotide bases pairs (base pairing – A-T and C-G) Enzymes bring in sugar-phosphate backbone Start with 1 DNA get 2 identical DNA Unless mutation ...
DNA Structure and Replication
... 2. DNA contains all the instructions for all the traits of a living organism. 3. A trait is any characteristic of a living thing. For example (name three traits): Answers will vary 4. DNA is found in the nucleus of a cell. 5. DNA makes up the chromosomes. 6. Humans have 23 pairs of chromosomes in th ...
... 2. DNA contains all the instructions for all the traits of a living organism. 3. A trait is any characteristic of a living thing. For example (name three traits): Answers will vary 4. DNA is found in the nucleus of a cell. 5. DNA makes up the chromosomes. 6. Humans have 23 pairs of chromosomes in th ...
DNA
... Describe the steps in the process • 1. Enzymes begin to unzip the the double helix along the chromosome. • 2. Floating nucleotides pair with the bases on the template strands. DNA polymerases bond the nucleotides together. • 3. Two identical molecules of DNA result. Each molecule has one strand fro ...
... Describe the steps in the process • 1. Enzymes begin to unzip the the double helix along the chromosome. • 2. Floating nucleotides pair with the bases on the template strands. DNA polymerases bond the nucleotides together. • 3. Two identical molecules of DNA result. Each molecule has one strand fro ...
DNA!
... – Franklin: the sides of the "ladder" are made of connecting sugars and phosphate groups, the nitrogenous bases are on the inside – Erwin Chargaff: the amount of adenine is always equal to the amount of thymine; and, the amount of guanine is always equal to the amount of cytosine ("Chargaff's Rules" ...
... – Franklin: the sides of the "ladder" are made of connecting sugars and phosphate groups, the nitrogenous bases are on the inside – Erwin Chargaff: the amount of adenine is always equal to the amount of thymine; and, the amount of guanine is always equal to the amount of cytosine ("Chargaff's Rules" ...
DNA
... Eukaryotic Cells – hundreds or thousands of replication bubbles form to speed up the copying process, replication proceeds in both directions from the replication fork ...
... Eukaryotic Cells – hundreds or thousands of replication bubbles form to speed up the copying process, replication proceeds in both directions from the replication fork ...
Competency Goal 2: The learner will develop an understanding of
... Goal 3 Key Concepts Review: The learner will develop an understanding of the continuity of life and the changes of organisms over time. 1. Define DNA and give its function. (Ch 12) 2. What is the shape of DNA? (293) 3. Who discovered the structure of DNA in 1953? (293) 4. What are the three main par ...
... Goal 3 Key Concepts Review: The learner will develop an understanding of the continuity of life and the changes of organisms over time. 1. Define DNA and give its function. (Ch 12) 2. What is the shape of DNA? (293) 3. Who discovered the structure of DNA in 1953? (293) 4. What are the three main par ...
Replisome
The replisome is a complex molecular machine that carries out replication of DNA. The replisome first unwinds double stranded DNA into two single strands. For each of the resulting single strands, a new complementary sequence of DNA is synthesized. The net result is formation of two new double stranded DNA sequences that are exact copies of the original double stranded DNA sequence.In terms of structure, the replisome is composed of two replicative polymerase complexes, one of which synthesizes the leading strand, while the other synthesizes the lagging strand. The replisome is composed of a number of proteins including helicase, RFC, PCNA, gyrase/topoisomerase, SSB/RPA, primase, DNA polymerase I, RNAse H, and ligase.