Which of the following is true about chromosome

1.	nucleoprotein
2.	23 pairs in single human diploid cell
3.	Contains primary constriction
4.	All of these

On what basis have chromosomes been divided into four classes?

In which of the chromosomes two equal arms are present

Satellite body is formed in chromosome because of

1. primary constriction

2. secondary constriction

3. Centromere

4. Both 1 and 3

Which of the following is true about nucleolus?

Nucleus is absent in

Through the nuclear pore the movement of _____and ______takes place

Chromatin can be observed in

(1)Interphase nucleus

(2)dividing nucleus

(3)Both A and B

(4)Nuclei of any stage

Chromatin can be stained with

1. Basic dyes

2. neutral dyes

3. acidic dyes

4. Crystal violet

A number of organised flattened membranous sacs are called

1. thylakoids

2. starch granules

3. Quantasomes

4. None of these