Which organism has more base pairs ?

1. E.coli

2. Bacteriophage

3. human

4. Yeast

How many types of nitrogenous bases are present in nucleic acid

1. 4

2. 3

3. 5

4. 6

Distance between two consecutive nucleotide pairs of DNA is

1. 0.34nm

2. 34angstrom

3. 3.4 micrometre

4. 34nm

Cytidine is a

1. nucleoside

2. nitrogen base

3. nucleotide

4. nucleic acid

Gene expression results in

1. DNA replication

2. Polypeptide formation

3. m-RNA formation

4. Protein duplication

Regulation of gene expression in eukaryotes cannot take place at

1. primary transcript level

2. splicing level

3. transport of m-RNA from nucleus to cytoplasm

4. replication level

In E.coli the conversion off lactose in galactose and glucose takes place by

1. Beta-galactokinase

2. Beta-guluctosidase

3. Beta-galactosidase

4. Beta-lactosidase

The conditions which regulate the expression of genes are

1. Environmental

2. Physiological

3. Metabolic

4. All of the above

The development and differentiation of embryo into adult organisms are result of

1. chemical regulation of expression of several sets of genes

2. Electrical and Chemical regulation of expression of several sets of genes

3. coordinated regulation of expression of several sets of genes

4. All of above

Regulation of gene expression in prokaryotes predominantly takes place at

1. transcriptional

2. translational level

3. splicing gene

4. transportation of m-RNA from cytoplasm to mesosomes