Gregor Mendel was born in which century?

$A$ cross between a recessive parent and an $F_1$ hybrid is known as:

The cross used to determine the genotype of a plant showing a dominant phenotype is known as:

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?

An organism possessing two identical alleles for a particular trait is known as:

Mendel studied several traits in pea plants. Which of the following combinations represents the traits he studied?