Chromatin can be observed in

(1)Interphase nucleus

(2)dividing nucleus

(3)Both A and B

(4)Nuclei of any stage

Subtopic:  Nucleus: Chromosomes |
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Through the nuclear pore the movement of _____and ______takes place

(1)RNA and proteins

(2)DNA and RNA

(3)DNA and proteins

(4)RNA and carbohydrates

Subtopic:  Nucleus |
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Nucleus is absent in

1. erythrocytes of mammals

2. sieve tube cells of Vascular plants

3. Both A and B

4. Companion cells of vascular bundle

Subtopic:  Nucleus |
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Which of the following is true about nucleolus?

(1)membrane less structure

(2)active site for rRNA synthesis

(3)numerous in cells which are involved in protein synthesis

(4)All of the above

Subtopic:  Nucleus |
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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

Subtopic:  Nucleus: Chromosomes |
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Difficulty Level:


On what basis chromosomes have been divided into four classes.

1. position of centromere

2. position of primary constriction

3. number of kinetochores

4. Both A and B

Subtopic:  Nucleus: Chromosomes |
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In which of the chromosomes two equal arms are present

(1)sub-metacentric chromosome

(2)metacentric chromosome

(3)acrocentric chromosome

(4)telocentric chromosome

Subtopic:  Nucleus: Chromosomes |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Difficulty Level:


Which of the following chromosome is absent in human beings

1. sub-metacentric chromosome

2. metacentric chromosome

3. acrocentric chromosome

4. telocentric chromosome

Subtopic:  Nucleus: Chromosomes |
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Satellite body is formed in chromosome because of

(1)primary constriction

(2)secondary constriction

(3)Centromere

(4)Both A and C

Subtopic:  Nucleus: Chromosomes |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


The enzyme present in lysosomes belong to the class ______ & acidic condition inside is maintained by ______

(1) Oxidoreductases, pumping protons

(2) Hydrolases, secretion of acids

(3) Hydrolases, pumping of protons

(4) Lyases, removal of protons

Subtopic:  Lysosomes |
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