In a dihybrid cross,considering the characteristics of the $F_1$ generation obtained from the parental generation and the $F_2$ generation,how many types of gametes (pollen grains) will be produced by the $F_1$ generation?

In peas,tallness is dominant over dwarfness and red colour of flowers is dominant over the white colour. When a tall plant bearing red flowers was pollinated with a dwarf plant bearing white flowers,the different phenotypic groups were obtained in the progeny in numbers mentioned against them:
Tall,Red $= 138$
Tall,White $= 132$
Dwarf,Red $= 136$
Dwarf,White $= 128$
Mention the genotypes of the two parents and of the four offspring types.

The following experiment is a dihybrid cross performed by Mendel. In which of the following are the green and wrinkled traits observed in the pea plants?

$A$ 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 a cross between $TTRr$ and $ttrr$,what percentage of the offspring will be tall with red flowers (in $\%$)? (Assume $T$ is tall,$t$ is dwarf,$R$ is red,and $r$ is white).

In a dihybrid cross between individuals with genotypes $TtRr$,if the total number of offspring is $16$,identify the number of individuals with genotypes $TtRr$ and $TtRR$ among them.