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Which is the complementary mRNA strand from the following DNA template?

TTC AGC

(1 point)
Responses

AAG UCG
AAG UCG

CCU GAU
CCU GAU

AAG TCG
AAG TCG

CCT GAT

1 answer

To determine the complementary mRNA strand from the given DNA template strand (TTC AGC), you need to follow the base pairing rules: Adenine (A) pairs with Uracil (U) in RNA, thymine (T) pairs with adenine (A), cytosine (C) pairs with guanine (G), and guanine (G) pairs with cytosine (C).

Given the DNA template strand:

DNA Template: TTC AGC

The complementary mRNA strand is constructed as follows:

  • T (from DNA) pairs with A (in mRNA)
  • T (from DNA) pairs with A (in mRNA)
  • C (from DNA) pairs with G (in mRNA)
  • A (from DNA) pairs with U (in mRNA)
  • G (from DNA) pairs with C (in mRNA)
  • C (from DNA) pairs with G (in mRNA)

So the complementary mRNA strand is:

mRNA: AAG UCG

Thus, the correct response is:

AAG UCG