1. Mutation enables adaptation of a population through natural selection. A. Tru
ID: 214387 • Letter: 1
Question
1. Mutation enables adaptation of a population through natural selection.
A. True
B. False
2. Japanese researchers created a living, reproductively fertile mouse from 2 mouse eggs’ DNA.
A. True
B. False
3. Vectors have selection markers in order to be restriction digested.
A. True
B. False
4. Nucleotide excision repair is a process for fixing damaged DNA.
A. True
B. False
5. PCR is a process sometimes used to sequence DNA in a machine called a thermocycler.
A. True
B. False
6. It is easier for bacteria if a DNA insert (vector) is small in comparison to the size of the bacterial genome.
A. True
B. False
7. In gene silencing, the DNA encoding genes is bound to siRNAs.
A. True
B. False
Explanation / Answer
Answer 1) true because natural selection those mutations which is best suited for that environment.
Answer 3) false because restriction site are there for digestion.
Answer4) true because it's a kind of process by which the damaged DNA can be repaired
Answer 5) false because PCR is only for amplification of template but if we can combine PCR and direct sequencing that amplification and sequencing can be done in same vial.
Answer 6) true because if the size of insert will be large that it can not fit in the genome of the bacteria and replication of insert will not occur.
Answer 7) true because in this the si RNA will cleaves the mRNA and hence suppress the expression .
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