Answer#5

Adenine

thymine

cytosine

guanine

Answer#6

Adenine <—>  Thymine

Cytosine <—> Guanine

Answer#7

Adenine=8

Thymine=8

Cytosine=4

Guanine=4

Answer#10

DNA stands for Deoxyribonucleic acid.

Answer#11

DNA is found in the nucleus.

Answer#12

The building blocks of DNA are called Nucleotide.