12-bio-botany-unit-IV Biotechnology

1. The inherent potential of any living plant cell to develop into entire organism is clled

Totipotency

Differentiation

Organogenesis

Morphogenesis

2. Enriched vitamin tablets are produced from the following organism for human consumption

Spirulina

Nostoc

Yeast

Mushroom

3. Pseudomonas putida is a engineered bacterium that can

Digest crude oil slick

Produce a hormone

Produce a antibiotic

Pollute the soi

4. One of the following organism is a SCP

Spirulina

Nostoc

Rhizobium

Mushroom

5. The two protoplasts are fused with a fusogen called

Polyethylene glycol (PEG)

Polyvinyl chloride (PVC)

Polyethane glycol (PEG)

Phosphoric ethane

6. Each restriction enzyme cleaves a molecule only at

Nucleotide sequence

The ends of genes

Methyl groups

The time of DNA replication

7. One of the following process is employed to introduce a foreign gene into a cell

Electroporation

Electrolysis

Plasmid

Ligation

8. A toxic protein called delta endotoxin is insecticidal and it is produced by

Bacillus thuringiensis

Escherichia coli

Streptomyces griseus

Bacillus lactii

9. Restriction enzymes are synthesized by

Bacteria only

Yeast and bacteria only

Eukaryotic cells only

All kinds of cells

10. Somatic hybrids are produced through

Protoplasmic fusion

Asexual fusion

Vegetative propagation

Grafting

11. The number of transgenic plants available to-day are approximately

Fifty

Six

Two

Twelve

12. The function of cytokinin is to increase

Cell division

Cell elongation

Fruit initiation