In DNA Adenine nucleotide always unite with....?

Question

a)any of these
b)guanine
c)none of these
d)cytosine
e)thymine

Answer 1

Here's a handy little tidbit my genetics prof shared with us for remembering the nucleotides and how they bond:

Say to yourself "cut pie"..."CUT py" (C, U, T are pyrimidines)
Say to yourself "pure silver"..."PUR AG" (A, G are purines)

For bonds, say to yourself
"See Gerard at 3 pm"..."C Gerard at 3" (C bonds to G, it's a triple bond)
"Meet you at 2 pm"..."Meet U AT at 2" (A bonds with U and/or T, and it's a double bond.)

Good luck!

Answer 2

E) Thymine

Answer 3

adenine always pair with thymine in DNA and adenine always pair with Uracil in RNA.
Guanine always pair with cytosine!
it's simple ,if you know the internal structural formula of each molecules.
adenine can form only two hydrogen bond with thymine or uracil while guanine forms three hydrogen bond with cytosine.
So,it's simple, just think about it, it is less probable to have different type of things one molecule can bind when the bonding is strong and more than usual.
And, the underlying key is pyrimidine bases always pair with purine bases!

Answer 4

Adenine always pairs with thymine. Cytosine always pairs with guanine.

Answer 5

Come on. A-T G-C so e, thymine. Read your book, that's way too easy.

Answer 6

B. Thymine A (adenine) and T (thymine) are continuously paired mutually, and C (cytosine) and G (guanine) are continuously paired mutually. I keep in mind that A and T are mutually via thinking continuously authentic. In RNA, that's the comparable pairings, different than that T is replaced via U (uracil).

Answer 7

any of these

Acetocine links with thymine and cytosine links with guanine

Answer 8

A goes with T
C goes with G

so the answer is e (note that this is only for DNA . . . RNA is different)

Answer 9

i agree with mastergenius

also, why dont these kids just google the answers to these questions. they might learn something and it could be faster than typing out a question and waiting for a response.