The first phase of translation is:

1. Recognition of DNA molecule

2. Aminoacylation of tRNA

3. Recognition of an anti-codon

4. Binding of mRNA to ribosome

Choose the correct pair from the following :

Which of the following statements is correct?

1. Adenine pairs with thymine through one H-bond.

2. Adenine pairs with thymine through three H-bonds.

3. Adenine does not pair with thymine.

4. Adenine pairs with thymine through two H-bonds.

If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6\times {10}^9$ bp, then the length of the DNA is approximately:

Dehydration synthesis is not involved in:
1. joining monosaccharides to form a polysaccharide
2. base pairing in a double-stranded DNA
3. linking of fatty acid molecules to glycerol
4. joining of amino acids to form a peptide

Genetically inactive and highly condensed region with tightly packed DNA is

(1) Euchromatin

(2) Heterochromatin

(3) Chromatin

(4) Chromosome

A tract of repetitive DNA in which certain DNA motifs (ranging in length from 10–60 base pairs) are typically repeated 5-50 times is called:

A procedure for identifying specific sequences of DNA, in which fragments separated on a gel are transferred directly to a second medium on which assay by hybridization may be carried out is called as:
1. Radioassay
2. Gel electrophoresis
3. Ultracentrifugation
4. Southern blot

The chain termination method using Dideoxyribonucleoside triphosphates was given by:

Which of the following is not a salient feature of the human genome?