$A$ cross between an $F_1$ plant and a recessive parent is called:

Mendel conducted his hybridization experiments for how many years?

In his classic experiments on pea plants,Mendel did not use .......... .

When a plant has two identical alleles for a single trait,it is called.....

The synthesis of starch in pea seeds is controlled by a single gene. This gene has two alleles,$B$ and $b$. If the shape of the pea seed is considered as the phenotype,what type of inheritance does this represent?

In pea plants,if the $Bb$ gene is present in a heterozygous condition for starch grain synthesis,what type of inheritance does the round seed shape exhibit?