Enhancement of Food Production — BIOLOGY STD 12 Science — Question

Name the part of the flower which the tassels of the corn-cob represent.

The following statements (i), (ii) and (iii) seem to describe the waterpollinated submerged plants. Which one of these statements is incorrect?

1. The flowers do not produce nectar.
2. The pollen grains have mucilaginous covering.
3. The brightly coloured female flowers have long stalk to reach the surface.

Give definitions : Callus

How does smoking tobacco in human lead to oxygen deficiency in their body?

Give significance: Pollen viability

Write down the consequence of absence of genetic variations among individual of a population.

Corpus luteum.

VNTR belongs to a class of satellite DNA, called microsatellite.

What is the function of flower?

Bacteria responsible for conversion of nitrite to nitrate.