AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA REPLICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which enzyme is responsible for adding new bases?
A
Topoisomerase
B
DNA Polymerase
C
Ligase
D
Primase
Explanation: 

Detailed explanation-1: -DNA polymerase (DNAP) is a type of enzyme that is responsible for forming new copies of DNA, in the form of nucleic acid molecules. Nucleic acids are polymers, which are large molecules made up of smaller, repeating units that are chemically connected to one another.

Detailed explanation-2: -During elongation, an enzyme called DNA polymerase adds DNA nucleotides to the 3′ end of the template.

Detailed explanation-3: -An enzyme called DNA polymerase binds to the primer and will make the new strand of DNA. DNA polymerase can only add DNA bases in one direction, from the 5’ end to the 3’ end. One of the new strands of DNA, the leading strand, is made continuously, the DNA polymerase adding bases one by one in the 5’ to 3’ direction.

Detailed explanation-4: -RNA polymerase RNA polymerases are enzymes that transcribe DNA into RNA. Using a DNA template, RNA polymerase builds a new RNA molecule through base pairing.

There is 1 question to complete.