Question

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

TTC AGC

(1 point)
Responses

AAG TCG
AAG TCG

CCU GAU
CCU GAU

AAG UCG
AAG UCG

CCT GAT

Answer 1

To determine the complementary mRNA strand from the provided DNA template strand (TTC AGC), we first need to understand the base pairing rules between DNA and RNA. In RNA, adenine (A) pairs with uracil (U) instead of thymine (T), and cytosine (C) pairs with guanine (G).

Given the DNA template strand:
- DNA template: TTC AGC

We will transcribe it to mRNA:
- A → U
- T → A
- C → G
- G → C

Now, we will convert the template:

1. T (A in mRNA)
2. T (A in mRNA)
3. C (G in mRNA)
4. (space for separation)
5. A (U in mRNA)
6. G (C in mRNA)
7. C (G in mRNA)

Combining these pairs:
- The mRNA strand will be: **AAG UCG**

So the correct answer is: **AAG UCG**.