In the DNA damage response p53: is a CDK inhibitor is a kinase recognizes direct
ID: 226733 • Letter: I
Question
In the DNA damage response p53: is a CDK inhibitor is a kinase recognizes directly the damaged site is a transcription factor Which mechanism does not repair double strand breaks? recombination photolyase followed by photoreactivation synthesis-dependent strand annealing (SDSA) non-homologous end joining The fluctuation test, regarding the origin of mutations, shows that: Mutations occur randomly, prior to selective pressure The mutation rate fluctuates greatly from organism to organism The mutation rate fluctuates greatly from cell to cell The mutation rate is fairly even across organisms The P element in Drosophila: is active m all cells during embryogenesis is a functional transposon carrying the transposase gene is active when crossing a P female with any male. is a functional retrotransposon carrying the reverse transcriptase gene During bacterial conjugation, the F element: is transferred as a double stranded molecule is transferred as a single stranded molecule. 3' end first enters the donor is transferred as a single stranded molecule. 5' end first enters the donor is transferred as a single stranded molecule, the leading end is random Which of the following could result in a frameshift mutation? deletion of one nucleotide deletion of three nucleotides deletion of six nucleotides incorporation of a base analogExplanation / Answer
ANSWER:
15.a , is a CDK inhibitor
16.b photolyase followed by photoreactivation
17.a mutations occur randomly prior to the selective pressure
18.b is a functional transposon carrying transposase gene
19.c,is transferred as asingle stranded molecule ,5' end first enters the donar
20.b, deletion of three nucleotides