Amino acid sequence, in protein synthesis is decided by the sequence of

1. t-RNA

2. m-RNA

3. c-DNA

4. r-RNA

What is true about tRNA?

1. It binds with an amino acid at it 3’ end

2. It has five double stranded regions

3. It has a codon at one end which recognizes the anticodon on messenger RNA

4. It looks like clover leaf in the three dimensional structure.

The binding site of tRNA with mRNA & amino acids respectively are

(1) mRNA with DHU loop and amino acid with CCA end.

(2) mRNA with CCA end and amino acid with anticodon loop.

(3) mRNA with anticodon loop and amino acid with DHU loop.

(4) mRNA with anticodon loop and amino acid with CCA end.

Which of the following set of options is used in translation?

1. hnRNA, tRNA, rRNA

2. mRNA, tRNA, rRNA

3. mRNA, tRNA, hnRNA

4. hnRNA, rRNA, tRNA

What would happen, if in a gene encoding a polypeptide of 50 amino acids, 25^th codon (UAU) is mutated to UAA?

(1) A polypeptide of 49 amino acids will be formed

(2) A polypeptide of 25 amino acids will be formed

(3) A polypeptide of 24 amino acids will be formed

(4) Two polypeptides of 24 and 25 amino acids will be formed