Genes that are similar in phenotypic effect when present separately, but together interact to produce a different trait and ratio is $9 : 7$ in $F_2$ generation. What are such genes known as
Supplementary genes
Complementary genes
Hypostatic genes
Epistatic genes
Discontinuous variations are
Chimera is produced due to
Select the incorrect statemant from the following.
Two offspring developed in the same uterus but from fertilization of two different ova are
Continuous variations are attributed to