AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA REPLICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Place the following in sequential order1. Recoil2. Straightens the double helix3. Breaks Hydrogen bonds4. Adds Free nucleotides
A
1, 2, 3, 4
B
3, 4, 2, 1
C
3, 2, 4, 1
D
2, 3, 4, 1
Explanation: 

Detailed explanation-1: -Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.

Detailed explanation-2: -The first step in DNA replication is to ‘unzip’ the double helix structure of the DNA? molecule. This is carried out by an enzyme? called helicase which breaks the hydrogen bonds? holding the complementary? bases? of DNA together (A with T, C with G).

There is 1 question to complete.