Question

-Describe how Mendel cross- pollinated pea plants.

Answer 1

Answer:

Mendel crossed pea plants by selecting a homozygous tall And homozygous short plants as parents.

Explanation:

In Mendel’s cross the selected parents are a tall pea plant and a short pea plant. Both the parents are homozygous. The recessive trait is short. Letter T represents tall and t represents short. Hence the phenotype TT is homozygous dominant and tt is homozygous recessive.  

The phenotype Tt represents tall since T is dominant over t. Mendel’s cross can be represented as  

$Tall \times Short$

$TT \times tt$

F1 generation      Tt     Tt   Tt   Tt

F2 generation     TT   Tt  Tt  tt

In the F1 generation all the plants are tall and in the F2 generation 3/4 plants are tall and1/4 plants are short.