Question

Each of DNA's four kinds of bases can pair with

only one of the other DNA bases. Using the base-
pairing rules, which of the following is the correct
order of bases that would pair with the following
string of bases on a DNA molecule:
Adenine, guanine, guanine, cytosine, thymine,
adenine
O A. Cytosine, thymine, thymine, adenine,
guanine, cytosine
O B. Thymine, cytosine, cytosine, guanine,
adenine, thymine
O C. Thymine, adenine, adenine, guanine,
cytosine, thymine
O D. Guanine, adenine, adenine, thymine,
cytosine, guanine

Answer 1

The correct order of bases that would pair with the sequence adenine, guanine, guanine, cytosine, thymine, adenine is thymine, cytosine, cytosine, guanine, adenine, thymine (option B). This follows the standard base-pairing rules in DNA.

Step-by-step explanation:

In DNA, base-pairing rules state that adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Given a DNA sequence of adenine, guanine, guanine, cytosine, thymine, adenine, the correct order of bases that would pair with this string on the opposite strand of DNA would be thymine (T), cytosine (C), cytosine (C), guanine (G), adenine (A), and thymine (T), respectively.

Therefore, the correct pairing for the provided sequence: 'Adenine, guanine, guanine, cytosine, thymine, adenine' would be 'Thymine, cytosine, cytosine, guanine, adenine, thymine' which is option B.

Answer 2

The correct answer is - B. Thymine, cytosine, cytosine, guanine, adenine, thymine.

Step-by-step explanation:

According to the base-pairing rule, the one purine binds with a specific pyrimidine always, the purine adenine (A) only pairs with the pyrimidine thymine (T) and similarly, the purine guanine (G) only pairs with the pyrimidine cytosine (C) in DNA, and in RNA the purine adenine (A) binds with the only uracil.

Here, the bases are -

Adenine, guanine, guanine, cytosine, thymine, adenine

the string of their base pair would be:

Thymine, cytosine, cytosine, guanine, adenine, thymine.