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If i have a template sequence of dna that reads 5' gag tta atg 3' what is the corresponding mrna that can be transcribed from this dna?

A) 5' CUC UAA AUG 3'
B) 5' GAG UUA AUG 3'
C) 5' CUC AAU CAU 3'
D) 5' GAG UUA UAC 3'

User Tjeden
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1 Answer

6 votes

Final answer:

The correct mRNA sequence transcribed from the DNA template 5' GAG TTA ATG 3' is 5' CUC AAU UAC 3'. The complementary RNA nucleotides are matched with the DNA nucleotides, with adenine pairing with uracil in RNA. Therefore, the correct option is c.

Step-by-step explanation:

If you have a template sequence of DNA that reads 5' GAG TTA ATG 3', the corresponding mRNA that can be transcribed from this DNA is 5' CUC AAU UAC 3'. To find the corresponding mRNA sequence, you need to determine the complementary RNA nucleotides for each DNA nucleotide: cytosine (C) pairs with guanine (G), adenine (A) pairs with uracil (U) in RNA, and thymine (T) pairs with adenine. Since transcription reads the template strand of DNA in the 3' to 5' direction, we construct the mRNA strand in the 5' to 3' direction.

Therefore, in the given DNA sequence 5' GAG TTA ATG 3', 'G' is complementary to 'C', 'A' to 'U', 'G' to 'C', 'T' to 'A', 'T' to 'A', and 'A' to 'U'. So the correct mRNA sequence is 5' CUC AAU UAC 3', which is option C in the provided choices.

User Clau St
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