Exercise: Dna Structure And Replication

Questions for: Dna Structure And Replication

Overwinding or overtightening of DNA during replication is caused and removed by
A:
DNAb, DNA polymerase
B:
DNAa, gyrase
C:
DNAb, gyrase
D:
Single stranded protein, DNAa
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The melting of 40-45 bp at the oriC site of E. coli requires
A:
DNA + ATP + HU
B:
DNA + ATP + HU + DNAb
C:
DNA+ ATP + HU + DNAb + DNAa
D:
DNA + ATP + HU + DNAb + DNAa + Pol III holoenzyme
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Without telomerase, what would happen to the ends of chromosomes after each round of replication?
A:
Chromosomes would become progressively shorter
B:
Nothing would happen
C:
Chromosomes would get longer
D:
none of the above
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
DNA polymerases I also has
A:
5'-3' exonuclease activity
B:
3'-5'exonuclease activity
C:
both (a) and (b)
D:
5'-3' endonuclease activity
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?
A:
Conservative theory
B:
Dispersive theory
C:
Semi-conservative theory
D:
Evolutionary theory
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz