AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA REPLICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Known as the initializer (starter), it makes the primer, so DNA can determine where to begin work.
A
ligase
B
helicase
C
DNA polymerase
D
primase
Explanation: 

Detailed explanation-1: -The problem is solved with the help of an enzyme called primase. Primase makes an RNA primer, or short stretch of nucleic acid complementary to the template, that provides a 3’ end for DNA polymerase to work on.

Detailed explanation-2: -An enzyme called RNA primase lays down a primer on each template strand so the polymerase knows where to begin.

Detailed explanation-3: -Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis.

Detailed explanation-4: -Primer synthesis marks the beginning of the actual synthesis of the new DNA molecule. Primers are short stretches of nucleotides (about 10 to 12 bases in length) synthesized by an RNA polymerase enzyme called primase.

There is 1 question to complete.