Question

A particular triplet of bases in the template strand of DNA is 5 AGT 3. The corresponding codon for the mRNA transcribed is_____________.A. 3 UCA 5.B. 3 UGA 5.C. 5 TCA 3.D. 3 ACU 5. 21.

Answer 1

Answer:

The correct answer is A. 3 UCA 5

Explanation:

The process of making mRNA from the template strand of DNA is known as transcription. The template strand is also called the antisense strand. In mRNA RNA polymerase read the sequence of code present on template strand of DNA and add opposite base pair in the mRNA chain.

In mRNA Thymine is replaced by Uracil therefore if there is Adenine nucleotide present in template strand then in mRNA Uracil will be added against it. The rest of the nucleotide addition is the same as in DNA i.e, T will be added corresponding to A and C will be added corresponding with G.

So here the template strand has sequence 5 AGT 3 therefore in the mRNA the corresponding codon would be 3 UCA 5.