Which traits did Mendel consider for his dihybrid cross experiment?

When a tall plant with rounded seeds $(TTRR)$ is crossed with a dwarf plant with wrinkled seeds $(ttrr)$,the ${F_1}$ generation consists of tall plants with rounded seeds. How many types of gametes will an ${F_1}$ plant produce?

If gene $A$ is dominant for height (tall) and gene $B$ is dominant for white color,what proportion of the $F_1$ progeny from the cross $AABb \times aabb$ will be short and white (in $\%$)?

In a trihybrid cross,which plant will produce eight types of gametes?

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 $Q$.

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?