Question

what is the mrna strand that would result from the dna template strand ccta? ccat ggat ccau ggau

Explanation:

Step1: Recall base - pairing rules

In transcription, DNA base pairs with RNA. The rules are: \(C\) (cytosine in DNA) pairs with \(G\) (guanine in RNA), \(G\) (guanine in DNA) pairs with \(C\) (cytosine in RNA), \(T\) (thymine in DNA) pairs with \(A\) (adenine in RNA), and \(A\) (adenine in DNA) pairs with \(U\) (uracil in RNA).

Step2: Apply base - pairing to the DNA template \(CCTA\)

For the first \(C\) in \(CCTA\), it pairs with \(G\). The second \(C\) pairs with \(G\). The \(T\) pairs with \(A\), and the \(A\) pairs with \(U\). So the mRNA strand is \(GGAU\).

Answer:

GGAU