B. Sc. III Botany Semester VI

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Paper – XVI Molecular Biology and Biotechnology Test 9 Tissue Culture

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1. The growth of plant tissues in artificial media is called___________

2 points

a) Gene expression

b) Transgenesis

c) Plant tissue culture

d) Cell hybridization

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2. A plant cell is a eukaryotic cell.

2 points

True

False

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3. Which of the following is NOT the feature of plant cells?

2 points

a) Presence of centrioles

b) The cell wall outside the cell membrane

c) Cell-cell communication through plasmodesmata

d) Consists of plastids

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4. Name the term given to the ability of single cells to divide and produce all the differentiated cell in the organism?

2 points

a) Unipotent

b) Pluripotent

c) Multipotent

d) Totipotency

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5. Out of the following, which one is NOT the basic component of culture media used for plant cultivation?

2 points

a) Complex mixture of salts

b) Amino acids

c) Serum albumin

d) Sugar/ sucrose

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6. Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium?

2 points

a) Not digested by plant enzymes

b) It does not use in microprapogation work

c) It does not react with media constituents

d) Remain stable at incubation temperature

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7. Which of the following is NOT a plant growth regulator?

2 points

a) Auxin

b) Cytokinins

c) Abcisic acid

d) Polyphenols

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8. Which of the following is the main effect of cytokines in the tissue culture system?

2 points

a) Adventitious shoot formation

b) Induction of somatic embryos

c) Adventitious root formation

d) Shoot elongation

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9. Which one of them is NOT the main effect of polyamines in the tissue culture system?

2 points

a) Promotion of tuber and bulb formation

b) Adventitious root formation

c) Promotion of shoot formation

d) Somatic embryogenesis

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10. Which of the following plant hormone control fruit ripening?

2 points

a) Ethylene

b) Auxin

c) Gibbrellins

d) Abscisis acid

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