Linked gene are separated by

Sex linked inheritance was discovered by

The most likely reason for the development of resistance against pesticides in insect damaging a crop is

Which one of the following mutation partially or fully reverses the harmful effects of previous mutation

A diseased man marries a normal woman. They get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is

When two genetic loci produce identical phenotypes in cis as well as in trans position, they are considered to be