Question

Assuming the sequences below are a part of a stable double-stranded DNA molecule, in which sequence would you most likely expect to locate the replication of origin:

A) TCGCGAAAAG
B) CGCGAAAGGT
C) AAATTTGTTC
D) AATATGCAGC

Answer 1

The replication of origin occurs at a specific nucleotide sequence where the replication process begins. The complementary sequence of GCTTATAT is ATAATCGA. The most likely location for the replication of origin would be the sequence D) AATATGCAGC.

Step-by-step explanation:

The replication of origin, also known as the origin of replication, is a specific nucleotide sequence where the replication process begins. In DNA molecules, replication always occurs in the 5'-3' direction. To find the complementary sequence, we need to know the base pairing rules: A pairs with T, and C pairs with G.

The sequence GCTTATAT has the following complementary sequence: 5'-ATAATCGA-3'.

Therefore, the most likely location for the replication of origin would be the sequence D) AATATGCAGC, as it contains the complementary sequence and is consistent with the base pairing rules.