$33$

Multiple Choice

$2$ points

There are $6$ loci controlling the trait of drool volume in dogs. They are the A$,$ B$,$ C$,$ D$,$ E$,$ and F loci.

What is the total number of genotypes possible for this drool volume trait?

$9$

$18$

$242$

$812$

$243$

$729$

$35$

Multiple Choice

$2$ points

A breeder noticed that when they made a testcross between an F$1$ AaBb individual and an aabb individual, there were more progeny with the parental genotypes than with recombinant genotypes. They were expecting a $1$:$1$:$1$:$1$ ratio, but saw very few recombinants.

This suggests what?

That the A and $B$ genes were likely on different chromosomes.

That the A and $B$ genes were likely on the same chromosome.