The advantages of Selecting pea plant for experiment by Mendel

It is easy to cultivate.
It has a short life cycle which made it possible to study several generations within a short period.
Large quantity of samples can be available for analysis.
It has different contrasting characters. For example; tall or dwarf plants, yellow or green seeds.
It was easy to track the passing of these characters in the progeny.
Pea plants are naturally Self pollinating.
It has perfect bisexual flowers containing both males and females part.
Because of self pollination,plants are homozygous . It is , therefore easy to get purelines for several generations.
It is easy to practice cross pollination because pollen from one plant can be introduced to the stigma of another plant.

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What are Gram positive and Gram negative bacteria ?

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