Question

2. DNA

a. is made up of amino acids.
C.
cannot be repaired if it is mutated.
b.
has a structure like a twisted ladder.
d. All of the above

Answer 1

D.

Step-by-step explanation:

Dna is made of amino acids ,cannot be repaired if mutated and is a twisted ladder structure.

Answer 2

b

Step-by-step explanation: