Q. No.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
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 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
In which of the chromosomes two equal arms are present
(1)sub-metacentric chromosome
(2)metacentric chromosome
(3)acrocentric chromosome
(4)telocentric chromosome
Which of the following chromosome is absent in human beings
1. sub-metacentric chromosome
2. metacentric chromosome
3. acrocentric chromosome
4. telocentric chromosome
Satellite body is formed in chromosome because of
1. primary constriction
2. secondary constriction
3. Centromere
4. Both A and C
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
Which of the following statement is not concerned with fluid mosaic model of plasma membrane?
1. Phospholipid forming a water resistant barrier
2. Glycocalyx at inner surface
3. Mosaic pattern of proteins
4. More extrinsic protein at inner surface
Which of the following is not a microtubular organelle?
1. Centriole
2. Cilia
3. Basal body
4. Dalton complex
Select the incorrect statement with respect to prokaryotic cells
1. Cytoplasm lacks membrane bound organelles
2. Sap vacuoles are absent
3. Chromosome possesses acidic protein i.e., polyamine
4. Lack streaming movement of cytoplasm
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