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

Avery et. al. found that transformation is affected by

1. Protease

2. RNase

3. DNase

4. Lipase

Presence of which of the following features make(s) the RNA less stable as compared to
DNA?

(a) Free 2' OH

(b) Single ringed nitrogenous base

(c) Uracil in place of 5-methyl uracil

1. (a) and (c)

2. (a) and (b)

3. (b) and (c)

4. (c) only

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

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

1. Bacteriophage

2. Cyanophage

3. Fungi

4. Vicia faba