Question

check all ways below to ensure that the bases in rna are properly paired.
the template dna would be 3 gucuacaugccugcuauu 5.
the mrna strand is complementary to the dna template strand.
during transcription, g in dna pairs with c in mrna, and a in dna pairs with u in mrna.

Explanation:

1. The template DNA should be complementary to the mRNA strand with the direction 3' - 5'. In DNA, T pairs with A in mRNA, G pairs with C, C pairs with G and A pairs with U. The given template DNA sequence has incorrect base - pairing and direction logic.
2. mRNA is synthesized as a complementary copy of the DNA template strand during transcription.
3. During transcription, the base - pairing rules are G - C and A - U (since RNA has Uracil instead of Thymine in DNA).

Answer:

The mRNA strand is complementary to the DNA template strand.
During transcription, G in DNA pairs with C in mRNA, and A in DNA pairs with U in mRNA.