What is the genotypic ratio of the $F_2$ generation in Mendel's dihybrid cross?

In Mendel's dihybrid cross,what percentage of the $F_2$ generation possesses the $RrYy$ genotype (in $,\%$)?

$A$ dihybrid for qualitative traits is crossed with a homozygous recessive individual of its type. The phenotypic ratio is:

In plants,red color $(R)$ is dominant over yellow $(r)$ and tallness $(T)$ is dominant over dwarfness $(t)$. If a plant with genotype $RRTt$ is crossed with a plant with genotype $rrtt$,what will be the result?

Explain the Law of Independent Assortment based on a dihybrid cross.

What is the percentage of recessive gametes produced by $YyRr$ (in $\%$)?