Question

question 10 (1 point)
which of the following is the correct pairing?
adenine and guanine
adenine and thymine
cytosine and thymine
guanine and thymine
question 11 (1 point)
dna replication is considered to be semiconservative, meaning each strand of old dna is kept together and the two new strands are kept together.
true
false

Explanation:

• Question 10: In DNA, adenine pairs with thymine (A - T) and guanine pairs with cytosine (G - C). Adenine and guanine are both purines and do not pair. Cytosine and thymine are a pyrimidine and a pyrimidine respectively and do not pair. Guanine and thymine also do not follow the base - pairing rules.
• Question 11: In semi - conservative DNA replication, each new DNA molecule consists of one old (parent) strand and one new strand. It is not that the two old strands stay together and the two new strands stay together.

Answer:

• Question 10: B. Adenine and Thymine
• Question 11: B. False