In the $F_2$ generation of a dihybrid cross of homozygous parents,the number of genotypes and phenotypes will be respectively . . . . . . .

In a dihybrid cross where two parents differ in their traits,such as yellow seeds $(YY)$ with round shape $(RR)$ and green seeds $(yy)$ with wrinkled shape $(rr)$,how many seeds out of the total $16$ in the $F_2$ generation will be green $(yy)$?

If the cross is $Aabb \times aaBb$,what will be the genotypic ratio of the offspring?

The following cross,$YyRr \times yyrr$ in garden pea plant,would result in the formation of

In humans, brown eyes $(B)$ are dominant over blue $(b)$ and dark hair $(D)$ are dominant over red hair $(d)$. A man with brown eyes and red hair marries a woman with blue eyes and dark hair. They have two children; one resembles the man (brown eyes, red hair), and the other resembles the woman (blue eyes, dark hair). What are the genotypes of the man and the woman?

How many different types of gametes can be produced by the $F_1$ progeny resulting from the cross $AA BB CC \times aa bb cc$?