4) Noted here are a few proteins whose functions are required for DNA replicatio

Question

4) Noted here are a few proteins whose functions are required for DNA replication:

I. Primase II. Single Strand Binding Proteins III. Helicase IV. DNA polymerase 3 V. DNA polymerase 1

Which of the following represents a correct sequence of their functions for “leading strand” DNA synthesis?

a. I, V, II, III

b. III, I, II, V

c. IV, I, V, II

d. III, II, I, IV

e. I, III, IV, V

5) Based on your knowledge about DNA double helix structure and stability, which of the following nucleotide sequences would you predict to be present at the E. coli origin of replication (OriC)?

a. CCCGGGT

b. CGCGGTG

c. GGGTACC

d. TGTGTGC

e. TTTATACA

Explanation / Answer

4.d.. Helicase first to open the two strands , and then ssb to keep it stable and then primase to add primers and den dna plo 3 for the process of replication of the leading strand.

5.e TTTATACA in the ori C region

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