Who is known as the father of genetics?

Read the following statements.
Statement $I$: In a typical test cross, an organism showing a dominant phenotype is crossed with the recessive parent.
Statement $II$: The ratio of organisms showing dominant and recessive traits in $F_1$ generation of a test cross indicates that the organism with unknown genotype is homozygous dominant.
Choose the correct option.

.......... is the unit of inheritance.

An allele is defined as:

Which of the following is not a dominant trait in edible pea?

The branch of zoology dealing with the study of similarities and differences between individuals related by descent is known as: