Nucleoprotein fibers in the interphase nucleus called chromatin contain all the following except:

1.	DNA	2.	Basic histones
3.	RNA	4.	Acidic histones

When the centromere in a chromosome is located close to its end, the chromosome is called as:

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

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