Question

In AGCT of DNA hydrogen bonds and base pairings occur between
A) A−U,C−G
B) A−C,G−T
C) A−G,C−T
D) A−T,C−G

Answer 1

The large number of hydrogen bonds are between complementary base pairs in a DNA double helix combine to confer great stability for the structure.

Complete answer:
A base pair is two chemical bases clung to each other shaping a "rung of the DNA stepping stool." The DNA particle comprises two strands that breeze around one another like a turned stepping stool. Each strand has a spine made of alternating sugar (deoxyribose) and phosphate groups. Appended to each sugar is one of four bases- - adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine framing a base pair with thymine, and cytosine shaping a base pair with guanine.
A base-paired DNA sequence:
AT CGATT GAGCTC TAG CG
TA GCTA ACTCG AGA TCGC
The rules of base pairing illustrate us that if we can "read" the sequence of nucleotides on one strand of DNA, we can tell the complementary sequence on the complementary strand.

So, the correct answer is option D.

Note: Every DNA molecule consists of two strands, and there are four nucleotides present in DNA: A, C, T, and G.if there's a G on one side of the strand, there will consistently be a C on the other. On the off chance that there's a T on one side o.f the strand, there will consistently be an A on the other. Also, those nucleotides consistently pair