What is the mechanism by which base analogs cause mutations? A. Deamination of cytosine leading to...
What is the mechanism by which base analogs cause mutations? A. Deamination of cytosine leading to uracil B. Intercalating between adjacent bases in DNA C. Oxidation of guanine Mispairing with normal bases D. Depurination of guanines
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What is the mechanism by which base analogs cause mutations? A.
Deamination of cytosine leading to...
Deamination of a cytosine base in DNA results in a uracil base, which is disallowed in...
Deamination of a cytosine base in DNA results in a uracil base, which is disallowed in DNA. To resolve this conflict, this DNA needs to be repaired. For this, the modified base is recognized and removed by a ______, resulting in an AP site, which is recognized and cleaved by an endonuclease for nick-translation. Select one: a. exonuclease b. Uracyl DNA-glycosylase c. HindIII restriction endonuclease d. Klenow fragment e. AP-site endonuclease
4) Which of the following base pairs is found in RNA? a) guanine and adenine b)...
4) Which of the following base pairs is found in RNA? a) guanine and adenine b) adenine and cytosine c) guanine and uracil d) adenine and uracil 5) How many different bases are found in DNA a) 1 b) 2 c) 3 d) 4
Errors during DNA replication can spontaneously create some indel mutations. What is the name for the...
Errors during DNA replication can spontaneously create some indel mutations. What is the name for the kind of occurrence during replication that causes an indel mutation? (Select any answers that are appropriate. You may need to choose more than one answer to earn the entire point.) replication slippage b. replica plating tautomerization d. slipped mispairing deamination depurination
5. What is the difference between the replication fork within bacterial and a huma 6. What...
5. What is the difference between the replication fork within bacterial and a huma 6. What are leading and lagging strands? 7. In which direction does replication occur? 8. What are Okazaki fragments? 9. List the names of 8 proteins involved in replication and also define their function 10. What is the Function of RNA Primase? 11. Which enzyme removes the RNA from the replicatied DNA? 12. What are the functions of enzyme DNA polymerase? 13. In which direction does...
Are these correct? DNA - MULTIPLE CHOICE (2 pts) How many nurogenous bases are there in...
Are
these correct?
DNA - MULTIPLE CHOICE (2 pts) How many nurogenous bases are there in DNA? AT B) 2 C)3 ) - Which of the following is not a nitrogenous base found in DNA? A) Adenine B) Cytosine C) Guanine Uracil DNA is made up of Nitrogenous base pairs. The bases bond in which of the following patterns? A) Adenine - Thymine: Cytesine Guanine B) Adenine - Cytosinc; Guanine - Thymine C) Adenine - Guanine; Cytosine - Thymine D)...
13) The number of new mutations in a given gene per cell generation is called? B)...
13) The number of new mutations in a given gene per cell generation is called? B) mutation rate C) recombination frequeney 14) A type of spontaneous mutation that occur when a purine base is removed from the DNA is A) deamination D) alkylate bases В) apurination E) base analog C) thymine dimers 15) A type of spontaneous mutation that involves a temporary change in the base conformation because the keto group may change to an enol functional group or amino...
1. List all the bases (Cytosine, Adenine, Thymine, Guanine and Uracil) pairs in DNA paired by...
1. List all the bases (Cytosine, Adenine, Thymine, Guanine and Uracil) pairs in DNA paired by hydrogen bonding? 2. What is the transfer DNA anticodon for the messenger DNA codon, A-G-C? a) U-C-G b) G-U-T c) G-C-A d) T-C-G 3. What is the transfer RNA anticodon for the messenger RNA codon, A-G-C? a) U-C-G b) G-U-T c) G-C-A d) T-C-G
2. Oxidation of nitrogenous bases is one type of DNA damage. a. What is the most...
2. Oxidation of nitrogenous bases is one type of DNA damage. a. What is the most common mechanism for repairing oxidized bases? (1 mark) b. Outline the steps involved in the mechanism you listed in part (a). (3 marks) C. How is this mechanism able to repair other types of damaged bases (for example, deamination of cytosine)? (1 mark)
Match the following terms with their descriptions below. Question Selected Match Mutant allele is mutated to...
Match the following terms with their descriptions below. Question Selected Match Mutant allele is mutated to wild-type C. Reverse mutation Flat planar molecule able to sandwich between DNA bases A. Intercalator A region of DNA more likely to acquire mutations B. Hot spot Light-requiring thymine dimer repair mechanism D. Alkyltransferase Single-use repair of nitrogen mustard DNA alkylation E. Photoreactivation (18) Which of the following is incorrectly paired? A. UV light - Thymine dimer B. Imino form cytosine- Transition D. TNRE...
answer all the questions please *3 2 1 OA- АаВЬСcl AaBbc | АаВЬСc| АаВЬС Emphasis Heading...
answer all the questions please
*3 2 1 OA- АаВЬСcl AaBbc | АаВЬСc| АаВЬС Emphasis Heading 1 1 Normal Strong Paragraph ly Styles 8) In mammalian female cells, the DNA of the Barr Body is characteristic of a) Heterochromatin b) Euchromatin c) Dispersed chromatin d) Paternal DNA ONLY e) Maternal DNA ONLY 9) When used to describe the RNA polymerases' activity, the term "processivity” refers to: a) The ability to recognize and bind to a promoter region b) The ability...
4) Which of the following base pairs is found in RNA? a) guanine and adenine b) adenine and cytosine c) guanine and uracil d) adenine and uracil 5) How many different bases are found in DNA a) 1 b) 2 c) 3 d) 4
Errors during DNA replication can spontaneously create some indel mutations. What is the name for the kind of occurrence during replication that causes an indel mutation? (Select any answers that are appropriate. You may need to choose more than one answer to earn the entire point.) replication slippage b. replica plating tautomerization d. slipped mispairing deamination depurination
5. What is the difference between the replication fork within bacterial and a huma 6. What are leading and lagging strands? 7. In which direction does replication occur? 8. What are Okazaki fragments? 9. List the names of 8 proteins involved in replication and also define their function 10. What is the Function of RNA Primase? 11. Which enzyme removes the RNA from the replicatied DNA? 12. What are the functions of enzyme DNA polymerase? 13. In which direction does...
Are
these correct?
DNA - MULTIPLE CHOICE (2 pts) How many nurogenous bases are there in DNA? AT B) 2 C)3 ) - Which of the following is not a nitrogenous base found in DNA? A) Adenine B) Cytosine C) Guanine Uracil DNA is made up of Nitrogenous base pairs. The bases bond in which of the following patterns? A) Adenine - Thymine: Cytesine Guanine B) Adenine - Cytosinc; Guanine - Thymine C) Adenine - Guanine; Cytosine - Thymine D)...
13) The number of new mutations in a given gene per cell generation is called? B) mutation rate C) recombination frequeney 14) A type of spontaneous mutation that occur when a purine base is removed from the DNA is A) deamination D) alkylate bases В) apurination E) base analog C) thymine dimers 15) A type of spontaneous mutation that involves a temporary change in the base conformation because the keto group may change to an enol functional group or amino...
1. List all the bases (Cytosine, Adenine, Thymine, Guanine and Uracil) pairs in DNA paired by hydrogen bonding? 2. What is the transfer DNA anticodon for the messenger DNA codon, A-G-C? a) U-C-G b) G-U-T c) G-C-A d) T-C-G 3. What is the transfer RNA anticodon for the messenger RNA codon, A-G-C? a) U-C-G b) G-U-T c) G-C-A d) T-C-G
2. Oxidation of nitrogenous bases is one type of DNA damage. a. What is the most common mechanism for repairing oxidized bases? (1 mark) b. Outline the steps involved in the mechanism you listed in part (a). (3 marks) C. How is this mechanism able to repair other types of damaged bases (for example, deamination of cytosine)? (1 mark)
answer all the questions please
*3 2 1 OA- АаВЬСcl AaBbc | АаВЬСc| АаВЬС Emphasis Heading 1 1 Normal Strong Paragraph ly Styles 8) In mammalian female cells, the DNA of the Barr Body is characteristic of a) Heterochromatin b) Euchromatin c) Dispersed chromatin d) Paternal DNA ONLY e) Maternal DNA ONLY 9) When used to describe the RNA polymerases' activity, the term "processivity” refers to: a) The ability to recognize and bind to a promoter region b) The ability...
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