Plant Biotechnology Online Multiple Choice Test 10

1. What are the essential characteristics of a cloning vector?

• Bacterial cells cannot survive without it
• Bacterial cells replicate it
• Bacterial cells take it up
• Both b and c

2. Which bacteria are known as natural genetic engineer of plants?

• Agrobacterium tumefaciens
• E.coli
• Bacillus sp
• Streptomyces sp

3. Who coined the term plasmid?

• Herbert Boyer
• Lederberg
• Stanley
• Benthem

4. In which type of culture the cell material grows in a finite volume of agitated liquid medium?

• Batch
• Continuous
• Discontinuous
• Suspension

5. The production of adventitious roots and shoots from cells of tissue culture is termed __________.

• organogenesis
• micropropagation
• callus culture
• suspension culture

6. The developmental pathway of numerous well organized small embryoids is called as _________.

• organogenesis
• micropropagation
• somatic embryogenesis
• suspension culture

7. The zygote embryo enclosed by protective coat developed from integument is __________.

• Artificial Seeds
• Embryo
• Anther
• Pollen

8. Which one of the following is CORRECT regarding artificial seeds?

• Establishment of callus culture
• Maturation of somatic embryos
• Encapsulation of somatic embryos
• All the above

9. Artificial seeds help to study the role of ________.

• endocarp
• endosperm
• pericarp
• mesocarp

10. Embryo is used as explant for the _______ culture

• embryo
• anther
• pollen
• callus

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