Question

The amino acid attaches to the tRNA at its:
a. 5' - end
b. 3' - end
c. Anti codon site
d. DHU loop


NCERT Class XII
Biology - Main Course Book

Chapter 6. Molecular Basis of Inheritance

Answer 1

b. 3' end is the correct option.

Answer 2

Answer:-

Option d is the correct answer.

Explanations:-

Some points on DHU loop:-

1. It is also known as Amino-acyl synthetase recognition loop.

2. Amino - acyl synthetase is a specific type of enzyme.

3. The function of this enzyme is to activate a specific type of amino acid.

4. After activaton this enzyme attaches the aminoacid to the 3' end of t-RNA.

5. There are 20 types of enzymes for 20 types of aminoacids.

6. The function of DHU loop is to recognize this specific Aminoacyl synthetase enzyme.