Plant Cell Culture MCQs

Question 1

A(n) __________ is an excised piece of leaf or stem tissue used in micropropagation.

Accepted Answer

explant

Answer

microshoot

Answer

medium

Answer

scion

Question 2

Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with

Accepted Answer

both cellulotyic and pectolytic enzymes

Answer

cellulotyic enzymes

Answer

pectolytic enzymes

Answer

proteolytic enzymes

Question 3

Which of the following is considered as the disadvantage of conventional plant tissue culture for clonal propagation?

Accepted Answer

Storage and transportation of propogates

Answer

Multiplication of sexually derived sterile hybrids

Answer

Less multiplication of disease free plants

Answer

Both (b) and (c)

Question 4

What is meant by 'Organ culture' ?

Accepted Answer

Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid

Answer

Introduction of a new organ in an animal body with a view to create genetic mutation in the progenies of that animal

Answer

Cultivation of organs in a laboratory through the synthesis of tissues

Answer

The aspects of culture in community which are mainly dedicated by the need of a specified organ of the human body

Question 5

Which method of plant propagation involves the use of girdling?

Accepted Answer

Layering

Answer

Grafting

Answer

Cuttings

Answer

Micropropagation

Question 6

Organogenesis is

Accepted Answer

formation of root and shoots on callus tissue

Answer

formation of callus tissue

Answer

both (a) and (b)

Answer

genesis of organs

Question 7

Which of the following is used in the culture of regenerating protoplasts, single cells or very dilute cell suspensions?

Accepted Answer

Both (a) and (b)

Answer

Nurse medium

Answer

Nurse or feeder culture

Answer

None of these

Question 8

In a callus culture

Accepted Answer

increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation

Answer

increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation

Answer

auxins and cytokinins are not required

Answer

only auxin is required for root and shoot formation

Question 9

Protoplasts are the cells devoid of

Accepted Answer

cell wall

Answer

cell membrane

Answer

both cell wall and cell membrane

Answer

none of these