The genotype of a species with respect to a particular trait can be determined by carrying out
-
A.
a back cross with a pure stock known to be recessive for that trait -
B.
a cross between two F, generations that are heterozygous for the trait -
C.
a testcross with a pure stock known to be dominant for the trait -
D.
in-breeding among the members of the species -
E.
out-breeding with an exotic variety of the species