Question

What is the mRNA complementary strand for the following DNA strand:

ACC GTT AAT

(1 point)
Responses

TGG CAA TTA
TGG CAA TTA

ACC GTT AAT
ACC GTT AAT

CAA UGG CCG
CAA UGG CCG

UGG CAA UUA

Answer 1

To find the mRNA complementary strand for the given DNA strand "ACC GTT AAT," we need to convert each DNA base to its complementary RNA base. The base pairing rules are:

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

Let's see how this works for your DNA strand "ACC GTT AAT":

- A (in DNA) -> U (in mRNA)
- C (in DNA) -> G (in mRNA)
- C (in DNA) -> G (in mRNA)
- G (in DNA) -> C (in mRNA)
- T (in DNA) -> A (in mRNA)
- T (in DNA) -> A (in mRNA)
- A (in DNA) -> U (in mRNA)
- T (in DNA) -> A (in mRNA)

So, the complementary mRNA strand will be:

- ACC GTT AAT (DNA)
- UGG CAA UUA (mRNA)

Thus, the correct answer is:

**UGG CAA UUA**