Which of the following was $NOT$ included in Mendel's laws?

Which traits did Morgan choose for the male and female $Drosophila$ respectively to explain linkage and recombination?

When normal and mutant alleles are present on opposite chromosomes of a homologous pair,the heterozygotes are called as:

What is the number of linkage groups in humans with respect to $22$ pairs of autosomes?

The recombination frequency between genes $B$ and $A$ is $5\%$. The recombination frequency between genes $A$ and $C$ is $15\%$. What is the possible sequence of these genes on the chromosome?

In the fruit fly $Drosophila$,the lack of independent assortment between genes $A$ and $B$ is due to .....