Question

Identify the mRNA transcribed from the DNA having following nucleotide sequence.

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

The mRNA is complementary to the template strand and has uracil in place of thymine.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
The figure shows a DNA double strand: \(5'\text{-ATGTTC-}3'\) on top and \(3'\text{-TACAAG-}5'\) below.

Step 2: Template
The lower strand \(3'\text{-TACAAG-}5'\) is the template strand read by RNA polymerase.

Step 3: Transcription
Complementary pairing gives \(5'\text{-AUGUUC-}3'\), with U replacing T.

Step 4: Compare the options
The option with \(5'\text{-AUGUUC-}3'\) is correct. The options with T are DNA, not RNA.

Final Answer:
The mRNA is 5'-AUGUUC-3'. \[ \boxed{\text{(B) }5'\text{-AUGUUC-}3'} \]