Question

Which is the complementary mRNA strand from the following DNA template?
TTC AGC
(1 point)
• AAG UCG
• AAG TCG
• CCT GAT
• CCU GAU

Answer 1

To find the complementary mRNA strand from the given DNA template strand, we first need to understand the base pairing rules:

- Adenine (A) pairs with Uracil (U) in RNA (instead of Thymine (T) in DNA).
- Thymine (T) pairs with Adenine (A).
- Cytosine (C) pairs with Guanine (G).
- Guanine (G) pairs with Cytosine (C).

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

We will transcribe it to mRNA using the base pairing rules:
- T (DNA) -> A (mRNA)
- T (DNA) -> A (mRNA)
- C (DNA) -> G (mRNA)
- A (DNA) -> U (mRNA)
- G (DNA) -> C (mRNA)
- C (DNA) -> G (mRNA)

Thus, the complementary mRNA strand is:
```
AAG UCG
```

The correct answer is:
• AAG UCG