Examine the figures above and answer the following question(s).
-In the figure above,the two DNA molecules produced when step "d" is completed will be
A) identical to the parent DNA but not to each other.
B) complementary to each other but not to the parent DNA.
C) different from each other and the parent DNA.
D) identical to each other and complementary to the parent DNA.
E) complementary to each other and complementary the parent DNA.

Question

Examine the figures above and answer the following question(s).
-In the figure above,the two DNA molecules produced when step "d" is completed will be
A) identical to the parent DNA but not to each other. 
B) complementary to each other but not to the parent DNA. 
C) different from each other and the parent DNA. 
D) identical to each other and complementary to the parent DNA. 
E) complementary to each other and complementary the parent DNA.

Quizplus · Accepted Answer

Step "d" is the process of DNA replication, where the two strands of the parent DNA molecule separate and each serves as a template for the synthesis of a new complementary strand. The new strands are synthesized in the 5' to 3' direction, so one new strand is synthesized continuously (leading strand) and the other is synthesized discontinuously (lagging strand).

As a result, the two DNA molecules produced after step "d" will be identical to each other because they are both synthesized based on the same parent DNA template. They are also complementary to the parent DNA because the new strands are synthesized through base-pairing with the template strands.

Therefore, the best choice is D - the two DNA molecules produced will be identical to each other and complementary to the parent DNA.

Examine the Figures Above and Answer the Following Question(s)