31.

Agar- agar is obtained from

• Chlorella

• Spirogyra

• Ulothrix

• Gelidium

Duramen is present in

• inner region of secondary wood

• part of sap wood

• outer region of secondary wood

• region of pericycle

In plants, water supply is due to

• osmosis

• imbibition

• guttation

• adhesion force

Most of the economically important fibre yielding plants belong to family

• Malvaceae

• Solanaceae

• Cruciferae

• Paceae

Paraffin wax is

• ester

• acid

• monohydric alcohol

• cholesterol

In cell cycle, during which phase chromosomes are arranged in equatorial plate?

• Metaphase

• Anaphase

• Telophase

• Prophase

Spindle fibre is made up of

• tubulin

• humulin

• intermediate filament

• flagelin

Induction of flowering by low temperature treatment is

• vernalization

• cryobiology

• photoperiodism

• prunning

Edible part of mushroom is

• basidiocarp

• secondary mycelium

• primary mycelium

• tertiary mycelium

Calyptra is derived from

• archaegonia

• capsule

• antheridia

• columella