$A$ gene that is responsible for coding for contrasting traits is known as .....

If Mendel had studied $7$ pairs of traits in a plant with $12$ chromosomes instead of $14$,then:

$A$ person has to perform crosses for the purpose of studying the inheritance of a few traits/characters. What should be the criteria for selecting the organisms?

$A$ test cross is defined as:

Genes are the.....

What are the genes that are expressed only in the homozygous condition called?