IndiaBIX

Biochemistry - DNA Structure and Replication

Exercise : DNA Structure and Replication - Section 2
16.
30 nm wide helix with five or six nucleosomes per helix is known as
solenoid
halonoid
kinoplast
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Which of the following is used to determine the appropriate stringency (Wallace rule)?
Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair)
Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair)
Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair)
Tm = 69.3° + 0.41 (%)G+C -650/1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
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?
Conservative theory
Dispersive theory
Semi-conservative theory
Evolutionary theory
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
DNA polymerases I also has
5'-3' exonuclease activity
3'-5'exonuclease activity
both (a) and (b)
5'-3' endonuclease activity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Without telomerase, what would happen to the ends of chromosomes after each round of replication?
Chromosomes would become progressively shorter
Nothing would happen
Chromosomes would get longer
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers