Question

List two reasons to justify the selection of garden pea plants by mendel for his experiment. Distinguish between dominant genes and reccessive genes 0

Answer 1

REASONS FOR CHOOSING PEA PLANTS:

Can be easily pollinated

It has a short life cycle and so it easy to study several generations within a short period.

Answer 2

Self pollinating plant

Easy to handle

Short life cycle

Large number of seeds are produced as progeny.

Dominant genes are those that can express themselves in homozygous as well as heterozygous condition.

Recessive genes are those that can express themselves only in homozygous condition.

Explanation:

Mendel performed his experiments to study genetics and for his experiment he selected pea plant because of above reasons.

Dominant genes

These genes produce proteins more efficiently in homozygous or heterozygous condition. for example:- TT, Tt In both conditions T dominates and the plants will be tall.

Recessive genes

These genes produce proteins less efficiently and only in homozygous state for example:-tt , these plants will be dwarf.