The number of correct statements amongst the given statements would be:

I:	The outer nuclear membrane is usually continuous with ER and also bears ribosomes
II:	Nuclear pores allow movement of RNA and proteins in both directions between nucleus and cytoplasm
III:	Satellite chromosomes have non-staining secondary constrictions at constant locations
IV:	Microbodies are membrane bound vesicles containing various enzymes and are present in both plant and animal cells

1.	1	2.	2
3.	3	4.	4

The triple helix structure of collagen was discovered by:
1. G. N. Ramachandran
2. Y. S. Subbarao
3. C. V. Raman
4. S. Chandrashekhar

DNA replication takes place during :
1. G1 - phase

2. G2 - phase

3. S - phase

4. Prophase

Consider the following two statements regarding enzyme action:
I. Co-factors play a crucial role in the catalytic activity of the enzyme.
II. Catalytic activity is reduced when the co-factor is removed from the enzyme.
Of the above statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct

Enzymes, vitamins and hormones are common in :
1. Being proteinaceous
2. Being synthesized in the body of organisms
3. Enhancing oxidative metabolism
4. Regulating metabolism

Which of the following statements can explain the fact that many scientists do not consider viruses as living organisms?

1. Metabolism and growth are defining properties of living organisms.

2. Anything less than a complete structure of a cell does not ensure independent living.

3. All cells arise from pre-existing cells

4. All biochemical reactions are catalyzed by enzymes.

A non-membrane bound organelle found in all cells is:
1. Centriole

2. Lysosome

3. Vacuole

4. Ribosome

Spindle fibers are attached to the chromosome in the region of :
1. Centrosome

2. Chromomere

3. Chromonema

4. Kinetochore

The four elements making 99 % of living system are :
1. CHOS

2. CHOP

3. CHON

4. CNOP

Identify the human cell for which the interphase period lasts the entire life of a person.
1. Hepatocyte
2. Bone marrow stem cells
3. Epidermal cell
4. Neuron