QUESTION 52 Which of the following has/have repetitive DNA sequences in heterochromatin state? (Select all that...
QUESTION 52 Which of the following has/have repetitive DNA sequences in heterochromatin state? (Select all that apply.)
A. mitochondria
B. telomere
C. centromere
D. chloroplast
Homework Answers
B. Telomere
Telomeres are the highly repetitive sequences of DNA that are present at the end of the chromosome and prevent the wearing down of chromosome. They have the repeating sequence of TTAGGG. If there would be no telomeres, then the length of chromosome would shorten in each successive replication process.
C. Centromere
Centromeres are essential for the proper segregation of chromosomes during cell division in eukaryotes. They are characterized by highly repetitive DNA regions and bound kinetochore proteins, which are required for the attachment of microtubules to the chromosomes during mitosis
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QUESTION 52 Which of the following has/have repetitive DNA
sequences in heterochromatin state? (Select all that...
Telomeres Select one: a. consist of repetitive sequences with high G content b. are a few...
Telomeres Select one: a. consist of repetitive sequences with high G content b. are a few hundred base-pairs long in vertebrates c. have specific proteins bound at the DNA ends d. a and c Hint: it's not a.
Question 2a Deoxyribonucleic acid (DNA) is made up of nucleotides. Which part of the nucleotide stabilizes...
Question 2a Deoxyribonucleic acid (DNA) is made up of nucleotides. Which part of the nucleotide stabilizes the structure of DNA using weak van der Waals interactions (stacking) and using hydrogen bonds? (Note that covalent bonds are not included in that sentence.) a. the deoxyribose sugar b. the ribose sugar c. the phosphate d. the nitrogenous base e. the amino acid Question 2b This ability of the nitrogenous bases to exist in more than one form can lead to incorporation of...
QUESTION 52 Which of the following is/are true? Select all that apply. Ti has 2 valence...
QUESTION 52 Which of the following is/are true? Select all that apply. Ti has 2 valence electrons and 20 core electrons Bi has 5 valence electrons. 3 of which are unpaired Avalence electron in its ground state in Sb could have the quantum numbers n-5.1-2. m o ms - 1/2 Ca and Zn have the same number of valence electrons QUESTION 53 Which of the following is/are true? Select all that apply The ground-state electron configuration for B.Sis[Xe] 4:14 10...
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply....
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply. Hint: DNA Packaging e video Genome and Ploidy video Textbook chapter 10 section 10.1 Nuclear chromosomes are linear molecules. All of the DNA is located inside the nucleus. Chromosomes contain molecules of DNA and protein The structure located between the two chromosome arms is known as a telomere.
Which statement does not pertain to repetitive DNA? Question 8 options: a) it is present in...
Which statement does not pertain to repetitive DNA? Question 8 options: a) it is present in exons and introns b) it is referred to as junk DNA c) it is extremely well conserved d) it is part of transposable elements
Question 8 For ZFNs, indicate which of the following properties apply (select all that apply) Select...
Question 8 For ZFNs, indicate which of the following properties apply (select all that apply) Select one or more: a. Associated with FokI b. Depends on HDR/NHEJ c. Can be used to introduce a new fragment of DNA into the genome d. Uses gRNA e. Can be engineered to target a sequence of exactly 16 nucleotides in the genome Question 9 For TALENs, indicate which of the following properties apply (select all that apply) Select one or more: a. Associated...
Question 18 Which of the following statements is FALSE? Euchromatin is replicated throughout the S phase...
Question 18 Which of the following statements is FALSE? Euchromatin is replicated throughout the S phase while heterochromatin is replicated late in the Sphase. Euchromatin is found in the arms of chromosomes while heterochromatin is found at the centromeres, telomeres, and other specific locations Euchromatin has higher numbers of genes than heterochromatin. Euchromatin has fewer crossovers than heterochromatin. Euchromatin has fewer repetitive sequences than heterochromatin.
Question 6 When examining centromere sequences for a specific eukaryote one finds: All the chromosomes have...
Question 6 When examining centromere sequences for a specific eukaryote one finds: All the chromosomes have a similar (consensus) sequence in their centromeres O Centromere sequences are quite different from one chromosome to the next O No specific sequence has been found to represent a centromere They all are a simple repeat sequence
Which of the following features of dna organization do eukaryotes and bacteria have in common (select...
Which of the following features of dna organization do eukaryotes and bacteria have in common (select all that apply)? a.) DNA breakage in one loop will not affect DNA in other loops b.) DNA is found within a 30nm filament c.) DNA is associated with basic proteins d.) Under electron microscope, DNA will have a beads-on-a-string appearance e.) a change of supercoiling in a cleaved loop would not affect other loops
40) Which of the following is a major contributor to variation in gene density in eukaryotes?...
40) Which of the following is a major contributor to variation in gene density in eukaryotes? A) repetitive sequences B) transposons C) restriction sites D) heterochromatin
QUESTION 52 Which of the following is/are true? Select all that apply. Ti has 2 valence electrons and 20 core electrons Bi has 5 valence electrons. 3 of which are unpaired Avalence electron in its ground state in Sb could have the quantum numbers n-5.1-2. m o ms - 1/2 Ca and Zn have the same number of valence electrons QUESTION 53 Which of the following is/are true? Select all that apply The ground-state electron configuration for B.Sis[Xe] 4:14 10...
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply. Hint: DNA Packaging e video Genome and Ploidy video Textbook chapter 10 section 10.1 Nuclear chromosomes are linear molecules. All of the DNA is located inside the nucleus. Chromosomes contain molecules of DNA and protein The structure located between the two chromosome arms is known as a telomere.
Question 18 Which of the following statements is FALSE? Euchromatin is replicated throughout the S phase while heterochromatin is replicated late in the Sphase. Euchromatin is found in the arms of chromosomes while heterochromatin is found at the centromeres, telomeres, and other specific locations Euchromatin has higher numbers of genes than heterochromatin. Euchromatin has fewer crossovers than heterochromatin. Euchromatin has fewer repetitive sequences than heterochromatin.
Question 6 When examining centromere sequences for a specific eukaryote one finds: All the chromosomes have a similar (consensus) sequence in their centromeres O Centromere sequences are quite different from one chromosome to the next O No specific sequence has been found to represent a centromere They all are a simple repeat sequence
40) Which of the following is a major contributor to variation in gene density in eukaryotes? A) repetitive sequences B) transposons C) restriction sites D) heterochromatin
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