$A$ human male produces sperms with the genotypes $AB, Ab, aB,$ and $ab$ pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person?

In the cross $AABb \times aaBb$,the ratio of progeny $AaBB : AaBb : Aabb : aabb$ is:

$A$ plant with the genotype $AABbCcDD$ is self-pollinated. Assuming independent assortment of the four genes,what will be the proportion of the $AAbbccDD$ genotype in the progeny?

In Mendel's experiment with garden peas,round seeds $(RR)$ were dominant over wrinkled seeds $(rr)$. Yellow cotyledons $(YY)$ were dominant over green cotyledons $(yy)$. What will be the phenotypic ratio of the $F_2$ generation produced by crossing $RRYY \times rryy$?

In Mendel's dihybrid cross,what percentage of seeds with yellow color were obtained in the $F_2$ generation (in $\%$)?

How many phenotypes can be obtained if a pea plant $(RrTt)$ is crossed with another pea plant with the same genotype?