When does recombination occur? A. During meiosis B. In response to a single- or double-stranded break...
When does recombination occur?
A. During meiosis
B. In response to a single- or double-stranded break in DNA
C. During antibody formation
D. When catalyzed by a recombinase
E. All of the above
Homework Answers
Answer
Option E is the right answer because recombination occurs during meiosis, single or double-strand break repair, antibody formation and catalyzed by the recombinase.
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When does recombination occur?
A. During meiosis
B. In response to a single- or double-stranded break...
QUESTION 9 Strand invasion requires a__, O A. 5', single-stranded B. 5', double-stranded ° C. 3, single-stranded O D.3', double-stranded DNA molecule. QUESTION 10 The form of genetic reco...
QUESTION 9 Strand invasion requires a__, O A. 5', single-stranded B. 5', double-stranded ° C. 3, single-stranded O D.3', double-stranded DNA molecule. QUESTION 10 The form of genetic recombination that allows movement of genetic elements from one DNA site to another is termed: O A site-specific recombination O B. homologous recombination ° C. branch migration D.transposition
QUESTION 9 Strand invasion requires a__, O A. 5', single-stranded B. 5', double-stranded ° C. 3, single-stranded O D.3', double-stranded DNA molecule. QUESTION 10...
6.) During meiosis, when crossing-over occurs between two homologous chromosomes, it does not happen at a...
6.) During meiosis, when crossing-over occurs between two homologous chromosomes, it does not happen at a single point, but rather two points with a stretch of DNA in between. a. What are the two junction points called? b. What is the region between the two points called and what is different about this region compared to how double-stranded DNA usually is? c. If the region described in b.) is located within a gene and the two homologues have different alleles...
Question 16 0.5 pts Identify the correct sequence of events proposed by the double-stranded break model...
Question 16 0.5 pts Identify the correct sequence of events proposed by the double-stranded break model of homologous recombination repair mechanisms: 1. Strand invasion and D loop formation. II. DNA gap repair synthesis. III. Generation of single stranded DNA segments. IV. Resolution. I, III, II, IV O III, I, II, IV III, II, I, IV IV, III, 1, 11 None of the above
During DNA replication, because each of the double stranded molecules of DNS consists of a single...
During DNA replication, because each of the double stranded molecules of DNS consists of a single strand of old DNA (parent strand) and a single strand of new DNA (daughter strand), DNA replication is also known as: • A) Origin of replication • B) Replication bubble • C) Semi-conservative replication • D) All of the above
In response to a double-stranded DNA break, which type of nuclease generates the 3' overhangs that...
In response to a double-stranded DNA break, which type of nuclease generates the 3' overhangs that will go on a homology search? A. 5'-to-3' Exonuclease B. 5'-to-3' Endonuclease C. 3'-to-5' Exonuclease D. 3'-to-5' Endonuclease
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B....
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 21. Which enzyme joins newly synthesized DNA fragments on the lagging strand? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 22. In a PCR reaction, at which temperature do the two strands of DNA...
1. Homologous recombination can happen between non-identical DNA sequences. T/F? 2. Homologous recombination can happen in_______...
1. Homologous recombination can happen between non-identical DNA sequences. T/F? 2. Homologous recombination can happen in_______ a) meiosis b) mitosis c) both 3. Homologous recombination in meiosis has the main purpose of_____ a) DNA repair b) Creating new chromosomes c) Sealing double-stranded breaks 4. Strand invasion usually happens without enzymatic assistance. T/F? 5. When replication fork runs into a nick, it results in a_______ a) single-stranded break b) double-stranded break 6. The invading end is usually a _______ a) 3'...
The formation of a bivalent during meiosis ensures that: a.) the sex chromosomes, which are not...
The formation of a bivalent during meiosis ensures that: a.) the sex chromosomes, which are not identical, will line up separately at the metaphase plate during meiosis I. b.) recombination will occur between identical sister chromatids c.) all four sister chromatids remain together until the cell is ready to divide. d.) one chromatid from the mother and one chromatid from the father will segregate together during meiosis I.
6a. Dissociation of the double stranded DNA helix into single coils is referred to as DNA...
6a. Dissociation of the double stranded DNA helix into single coils is referred to as DNA melting. In this process, two strands of a DNA molecule can be separated by heat without breaking any covalent bonds. Every unique DNA molecule “melts” at a different temperature. Determine the order of the DNA sequences listed below according to relative melting temperatures (lowest Tm to highest Tm). Assume that they all begin as stable double-stranded DNA molecules. [3 pts] A. CTGAATCA B. CAGTGTCT...
QUESTION 9 Strand invasion requires a__, O A. 5', single-stranded B. 5', double-stranded ° C. 3, single-stranded O D.3', double-stranded DNA molecule. QUESTION 10 The form of genetic recombination that allows movement of genetic elements from one DNA site to another is termed: O A site-specific recombination O B. homologous recombination ° C. branch migration D.transposition
QUESTION 9 Strand invasion requires a__, O A. 5', single-stranded B. 5', double-stranded ° C. 3, single-stranded O D.3', double-stranded DNA molecule. QUESTION 10...
6.) During meiosis, when crossing-over occurs between two homologous chromosomes, it does not happen at a single point, but rather two points with a stretch of DNA in between. a. What are the two junction points called? b. What is the region between the two points called and what is different about this region compared to how double-stranded DNA usually is? c. If the region described in b.) is located within a gene and the two homologues have different alleles...
Question 16 0.5 pts Identify the correct sequence of events proposed by the double-stranded break model of homologous recombination repair mechanisms: 1. Strand invasion and D loop formation. II. DNA gap repair synthesis. III. Generation of single stranded DNA segments. IV. Resolution. I, III, II, IV O III, I, II, IV III, II, I, IV IV, III, 1, 11 None of the above
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 21. Which enzyme joins newly synthesized DNA fragments on the lagging strand? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 22. In a PCR reaction, at which temperature do the two strands of DNA...
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