The coupling and repulsion theory was proposed by:

Give scientific reasons: Linkage and crossing over of genes are alternatives of each other.

What is a genetic map?

Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?

Genes $A$ and $B$ are linked. What will be the genotype of the offspring produced by a cross between $AB/ab$ and $ab/ab$?

The recombination frequency between the genes $a$ and $c$ is $5\%$,$b$ and $c$ is $15\%$,$b$ and $d$ is $9\%$,$a$ and $b$ is $20\%$,$c$ and $d$ is $24\%$,and $a$ and $d$ is $29\%$. What will be the sequence of these genes on a linear chromosome?