Question

Consider the following DNA template strand: ATC CAG ATG AAC AGC AAT Which is the correct complementary mRNA strand? (1 point) Responses UAG GUC UAC UUG UCG UUA UAG GUC UAC UUG UCG UUA UAG GAC UAC CUG UCG GGA UAG GAC UAC CUG UCG GGA TAG GTC TAC TTG TCG TTA TAG GTC TAC TTG TCG TTA ATC CAG ATG AAC AGC AAT

Answer 1

To find the correct complementary mRNA strand from the provided DNA template strand, we need to transcribe it by replacing thymine (T) with uracil (U) since mRNA uses uracil in place of thymine.

The given DNA template strand is:
**5' - ATC CAG ATG AAC AGC AAT - 3'**

Now we will perform the transcription by pairing the bases:
- A (adenine) pairs with U (uracil) in RNA
- T (thymine) pairs with A (adenine)
- C (cytosine) pairs with G (guanine)
- G (guanine) pairs with C (cytosine)

Transcribing the DNA template strand to mRNA, we get:

- A → U
- T → A
- C → G
- C → G
- A → U
- G → C
- A → U
- T → A
- G → C
- A → U
- A → U
- C → G
- A → U
- G → C
- C → G
- A → U
- A → U
- T → A

Putting that all together, the resulting mRNA strand (which will be read from 5' to 3') is:
**5' - UAG GUC UAC UUG UCG UUA - 3'**

Now, let's find the corresponding choice:

- **UAG GUC UAC UUG UCG UUA** is the correct transcription.

None of the other options provided in your list match this transcription. Therefore, the correct complementary mRNA strand is:

**UAG GUC UAC UUG UCG UUA**.