Question

this model shows how rna nucleotides pair with dna nucleotides. according to the rules of complementary base pairing, which sequence of rna nucleotides would pair with the dna sequence cagtc? gtcag gucag ctgac cugac caguc gtcug

Explanation:

Step1: Recall base - pairing rules

In DNA - RNA base - pairing, adenine (A) in DNA pairs with uracil (U) in RNA, thymine (T) in DNA pairs with adenine (A) in RNA, cytosine (C) in DNA pairs with guanine (G) in RNA, and guanine (G) in DNA pairs with cytosine (C) in RNA.

Step2: Pair each base of the DNA sequence

For the DNA sequence CAGTC, C pairs with G, A pairs with U, G pairs with C, T pairs with A, and C pairs with G. So the RNA sequence is GUCAG.

Answer:

GUCAG