In Pisum, yellow seed colour (Y) is dominant over green (y), and round shape of seed (R ) is dominant over wrinkled (y). Consider that these two pair of genes assort independently, then
(i) What proportion of the offsprings from the cross the cross `YyRr xx yyrr` would expected to have yellow-seeded trait ?
(ii) From the cross `Yyrr xx Yyrr`, how many will be pure yellow-wrinkled plants in the resulting generation ?

Explanation

(i)
`:.` Yellow -seeded plants `(YyRr, Yyrr) = 2/4`i.e, `50%`
(ii)
`:.` Pure-yellow wrinkled `(Yyrr)` plants `= 1/4` i.e, `25%`