The$ I.Q.$ of a genius ranges from
$70-89$
$90-109$
$110-139$
$140-$more
Distance between two linked genes upon a chromosome is measured in cross over units, is
Study of human race is called
The chromosome shown in the diagram below is broken at the points which are indicated by the arrows and the genes between these points became inverted
The resulting order of the genes will be
Mendel enunciated
Study of improvement of human race by providing ideal nature is