The main enzyme of transcription

1. DNA dependent DNA polymerase

2. DNA dependent RNA polymerase

3. RNA dependent RNA polymerase

4. RNA dependent DNA polymerase

Cytidine is

1. an amino acid

2. a nucleotide

3. a nucleoside

4. a nitrogenous base

Alfred Hershey and Martha Chase unequivocally proved that DNA is genetic material by using

1. Bacteriophage

2. Cyanophage

3. Fungi

4. Vicia faba

Select the correct match

1. Alc Jeffreys – Automated DNA sequencers

2. Frederick Sanger – Amino acid sequencing

3. Holley – Inverted L-shaped Structure of tRNA

4. Meselson & Stahl – DNA structure

In the human being, chromosome 1 has     A      genes and Y has     B     genes.

Select the option which correctly fills A and B.

1. A – 2968, B – 231

2. A – 231, B – 2968

3. A – 2168, B – 321

4. A – 321, B – 2168 

During post-transcriptional modification of hnRNA, capping involves.

1. Addition of poly-A tail at 3' end

2. Addition of 7 mG cap at 5' end

3. Removal of introns

4. Addition of 7 mG cap at 3' end

How many of the above features are associated with universal genetic code?

1. Five

2. Three

3. Four

4. Two

Select the incorrect statements from the following

1. (a), (b) and (c)

2. (b) and (c) only

3. (c) and (d)

4. (b) and (d)

Match column-I with column-II and choose the
correct option
       Column-I                     Column-II
a. RNA polymerase I          (i) hnRNA
b. RNA polymerase II        (ii) tRNA
c. RNA polymerase III       (iii) 28 S rRNA

1. a(iii), b(ii), c(i)

2. a(iii), b(i), c(ii)

3. a(i), b(ii), c(iii)

4. a(ii), b(iii), c(i)

According to human genome project, the maximum number of genes are present on

1. An allosome

2. An autosome

3. A chromosome present in males only

4. A chromosome present in females only