In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow…
In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the $\mathrm{F}_2$ generation the cross RRYY $\times$ rryy?
round seeds with yellow cotyledons, and wrinkled seeds with yellow cotyledons
only round seeds with green cotyledons
only wrinkled seeds with yellow cotyledons
only wrinkled seeds with green cotyledons
Solution
When a cross (dihybrid) is made between plants bearing round yellow (RRYY) and wrinkled green (rryy) seeds, all the plants in $\mathrm{F}_1$. (Ref. to Fig. 26.1)
