From a mating of two dihybrid individuals $(AaBb \times AaBb)$,how many of the $16$ possible zygote combinations would be expected to be homozygous dominant for both genes?

$A$ dihybrid plant produced by self-pollination yields $400$ seeds with $9$ different genotypes. How many seeds will have the $TtRr$ genotype?

When Mendel self-hybridised the $F_{1}$ plants $(RrYy)$,he found that dominant and recessive traits of one character are segregated in a

In Mendel's dihybrid cross,the number of genotypes and phenotypes obtained in the $F_2$ generation are $P$ and $Q$ respectively. Identify $P$ and $Q$.

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 $RRYY \times rryy$?

During a dihybrid cross with contrasting characters,in the $F_2$ generation,what is the proportion of individuals with parental genotypes (in $/6$)?