Which is the correct pair of complementary nitrogenous bases in DNA?

Question

Which pairs of complementary nitrogenous bases are found in DNA? Additionally, I understand that DNA can be represented as a double-stranded molecule, often described as a twisted ladder. I believe that the connections between the bases involve covalent bonds and hydrogen bonds. Can someone help clarify these details?

Anonymous · Accepted Answer

2. it could be double stranded DNA molecule or a ladder that is twisted.‍♀️ and I think 1. is covalent and hydrogen.(dont worry I searched them up on google)

Anonymous · Answer

A ) adenine and thymineExplanation: DNA has two types of nitrogenous bases: purines and pyrimidines. Adenine and guanine are purines while cytosine and thymine are pyrimidines.  A purine always pairs with a pyrimidine. Hence, adenine in DNA pairs with thymine while guanine pairs with cytosine. This is done to maintain the constant width of the double helix throughout the length.

Meghan Crona · Answer

bExplanation:

Anonymous · Answer

Each nucleotide base can hydrogen-bond with a specific partner base in a process known as complementary base pairing: Cytosine forms three hydrogen bonds with guanine, and adenine forms two hydrogen bonds with thymine. These hydrogen-bonded nitrogenous bases are often referred to as base pairs.

Anonymous · Answer

Explanation:strands of phosphate sugar backbone with complementary nitrogenous base pairs bound into a double helix

Anonymous · Answer

Adenine and thymine pair up. Just remember ATCG in that order, showing that adenine and thymine pair up, and so do cytosine and guanine

Lavern Kirlin · Answer

Answer - AAdenine pairs up with thymine, and cytosine pairs up with guanine.

Talon Bashirian · Answer

It would be the first option. Adenine and thymine.

Joana Friesen · Answer

The first one is correct. A always pairs with T, and C always pairs with G

Anonymous · Answer

They form hydrogen bonds between opposing dna which forms the twister ladder of dna

Anonymous

Which is the correct pair of complementary nitrogenous bases in DNA?

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