XII Bio-Qiz19i

Totipotency refers to the capacity ——— .

• to generate genetically identical plants

• to generate whole plant from any plant cell

• to generate hybrid protoplast

Solidifying agent used in plant tissue culture is —— .

• Agar

• EDTA

• Nicotinic acid

The phenomenon of the reversion of mature cells into the meristematic state , forms callus is called ——— .

• dedifferentiation

• redifferentiation

• differentiation

• totipotency

During PTC, the explant is inoculated into culture tubes with a photoperiod of ——— hours.

• 3 - 4

• 10 - 12

• 5 - 15

• 8 - 16

Which is the technique employed to get rid of microbes?

• Hybridization

• Sterilization

• Inoculation

Pick out the commonly used medium with carbon, vitamins and hormones.

• B5 medium

• White medium

• MS medium

• Nitsch’s medium

Potassium nitrate is a ————- .

• micronutrient

• minor nutrient

• macronutrient

The callus cells undergoes differentiation and produces somatic embryos, known as ——- .

• plantlets

• embryoids

• embryos

Culturing of embryos, anthers, ovaries, roots, shoots are known as ——- .

• meristem culture

• protoplast culture

• organ culture

• cell suspension culture

Quinine is the secondary metabolite obtained from the plant ——-.

• Cinchona officinalis

• Digitalis purpuria

• Papaver sominiferum