The Reproductive System — Biology STD 10 — Question

Name the Following:
The exact location of genes.

Name the Following :
Form of energy which is converted into chemical energy during photosynthesis.

Name the Following: Vaccination is not available against.

Correct the following statements if there is any mistake.
If there are 46 chromosomes in a cell there will be 23 chromatin fibres inside the nucleus during interphase.

Explain the term :
Recessive character

Give the Technical Term: Name the hormones which lead to the following condition: Growth of beard in women

Explain the Terms: Carrying capacity

Name the following:

The part of the human brain which controls body temperature.

Name the following:
The opening through which light enters the eyes.

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.

Why was the plant placed in the dark before beginning the experiment?