The traits controlled by the genes located on $X$ chromosome of human beings are said to be
Sex linked
Sex influenced
Sex limited
None of these
The scientists who have given the theory of linkage are
Generation of non-parental gene combinations is termed as
In man the mutation disease ‘Aniridia' $(Congenital\, absence \,of\, iris)$ occurs due to
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
Which of the following is an inherited trait in man