Homework Answers
Ans.
1.Production of new phages from bacteriophage DNA was not the early experiment demonstrating the DNA is the Hereditary material.
This was demonstrated by the bacterium streptococcus pneumoniea in the experiment of transformation by Griffith.
2. In Eukaryotic replication there are more than two replication fork are formed to complete the synthesis of entire chromosome in eukaryote, due to presence of multiple origin site.
4.The molecular structure of DNA consists of two nucleotide chains but not running in same direction 5' to 3'.
these two chains of nucleotide always running in opposite directions (Antiparallel) one strand is 5' to 3' and second strand is 3' to 5'.
5. Each complementary pair of base contains one purine and one pyrimidine, not two purine and two pyrimidine.
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Which of the following statement about DNA is FALSE? When bacteriophage DNA...
only one answer per question QUESTION 6 In a DNA molecule, what type of bond helds...
only one answer per question QUESTION 6 In a DNA molecule, what type of bond helds together the two antiparallel strands of nucleotide chains? a peptide bonds. b polar covalent bonds. c ionic bonds. d hydrogen bonds. e complementary base pairing bonds. QUESTION 7 Who proposed the double helix model? a Watson and Crick. b Griffith. c Avery. d Franklin. e Beadle and Tatum. QUESTION 8 Which of the following enzymes removes the primers used for DNA replication? a...
Each of the following statements about the structure of DNA may be either true or false....
Each of the following statements about the structure of DNA may be either true or false. Choose the appropriate answer for each of these statements. Bonding between adenine and thymine on opposite strands involves two hydrogen bonds. Nitrogenous bases are located on the outside of the double helix: phosphates are located towards the middle of the double helix. Bonding between guanine and cytosine on opposite strands involves three hydrogen bonds. DNA and RNA are structurally different due to the difference...
Pork Which one of the following statements correctly describes telomerase"? Select one: a. Telomerase uses the...
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Question 33 2 pts Which of the following statements about the process of DNA replication is...
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42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding...
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4. In a lake governed by the food web shown in the image to the right, 500 brown trout are added from fisheries. Which of the following outcomes would most likely be expected? A. Tadpole populat...
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Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in...
Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in prophase. b. The chromosome number in the resulting cells is halved c. Two genetically identical daughter cells are formed. d Crossing over occurs during prophase e. It consists of two nuclear divisions. Quession 15 How does a nucleus in G2 difler from a nucleus in G17 Select one a. DNA synthesis occurs only in G1 phase. b Inactive cells are arrested only in G2...
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in...
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in process called DNA curs in the nucleus of s acest FS Parent strand Parent strand Newly replicated DNA Newly replicated DNA- SA0 Daughter DNA molecule Daughter DNA molecule Figure 8.2: Overview of DNA replication and illustration of complementary base pairing. DNA must replicate before cell division so that each new daughter cell receives an exact copy of the parent DNA. 1. Replication begins when...
questions 25,62,54,77 25. At the end of Meiosis I, which best describes the chromosomes in the...
questions 25,62,54,77
25. At the end of Meiosis I, which best describes the chromosomes in the cells? A) DNA replication in the S phase has led to a doubling in chromosome number. B) The cells contain the haploid number of chromosomes. C) Chromosome number and structure are identical to the beginning of the S phase. D) The cells contain the diploid number of chromosomes. E)The chromosome number remains the same,but the DNA content is half the original cel. g påtterns...
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Each of the following statements about the structure of DNA may be either true or false. Choose the appropriate answer for each of these statements. Bonding between adenine and thymine on opposite strands involves two hydrogen bonds. Nitrogenous bases are located on the outside of the double helix: phosphates are located towards the middle of the double helix. Bonding between guanine and cytosine on opposite strands involves three hydrogen bonds. DNA and RNA are structurally different due to the difference...
Pork Which one of the following statements correctly describes telomerase"? Select one: a. Telomerase uses the DNA as a template for synthesizing a new strand. b. Activity of this enzyme is inhibited in many cancerous cells. c. It creates repetitive DNA at the end of the chromosomes, d. This enzyme is active in all dividing cells. In the 1953 article where Watson and Crick describe the structure of DNA, they make reference to a possible copying mechanism for the molecule....
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
4. In a lake governed by the food web shown in the image to the right, 500 brown trout are added from fisheries. Which of the following outcomes would most likely be expected? A. Tadpole population will increase B. Duck population will decrease C. Algae population will increase D. Lilly Pad population will decrease E. Caddis Fly larvae will increase 5. Which of the following pieces of evidence most strongly supports a common ancestor of all life on Earth? A....
Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in prophase. b. The chromosome number in the resulting cells is halved c. Two genetically identical daughter cells are formed. d Crossing over occurs during prophase e. It consists of two nuclear divisions. Quession 15 How does a nucleus in G2 difler from a nucleus in G17 Select one a. DNA synthesis occurs only in G1 phase. b Inactive cells are arrested only in G2...
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questions 25,62,54,77
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