Question 11 (1 point)
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A possible sequence of nucleotides in the DNA that would code for the polypeptide sequence –Phenylalanine, Leucine-Tyrosine-Cysteine- would be:
Question 11 options:
A) TTG-CTA-CAG-TAG
B) AAU-GAC-GUC-AUA
C) AUG-CTG-CAG-TAT
D) AAA-AAT-ATA-ACA
E) UGU-UAU-UUA-UUU
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Question 12 (1 point)
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A particular eukaryotic protein is 300 amino acids long. Which of the following could be the number of nucleotides in the DNA that codes for this protein?
Question 12 options:
A) 3
B) 100
C) 300
D) 900
E) 1800
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Question 13 (1 point)
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If cytosine makes up 22 % of the nucleotides in a sample of DNA from an organism, then adenine would make up what percent of the bases?
Question 13 options:
A) 22
B) 44
C) 28
D) 56
E) It cannot be determined from the information provided
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Question 14 (1 point)
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Which of the following is NOT related to ribosomal activity?
Question 14 options:
A) A site
B) spliceosome
C) codon recognition
D) peptide bond formation
E) P site
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Question 15 (1 point)
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The processing of the primary transcript involves
Question 15 options:
A) the removal of introns and the splicing together of exons
B) the removal of exons and the splicing together of introns
C) the addition of a guanine cap and a poly-A tail
D) the attachment of introns to ribosomal RNA
E) Both A and C are correct
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Question 16 (1 point)
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A frameshift mutation could result from
Question 16 options:
A) a base insertion only
B) a base deletion only
C) a base substitution only
D) deletion of three consecutive bases
E) either an addition or a deletion of a base
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Question 17 (1 point)
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A silent mutation can result from:
Question 17 options:
A) the insertion of a base pair
B) the substitution of a base pair that results in the same amino acid
C) the deletion of a base pair
D) the substitution of a base pair which lies in an intron and is eventually spliced out by spliceosomes
E) B and D
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Question 18 (1 point)
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mRNA
Question 18 options:
A) makes up the ribosomes in the cell
B) carries the genetic information from the nucleus into the cytoplasm
C)
is helical
D) is a double strand
E) always codes for all 20 amino acids