A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype ggKk. What possible gametes can the plant produce?

Question

thomaster · Answer

It would be any unique combination of one g and one k 
In this case you only have a normal g, a normal k and a capital K
So only 2 combinations are possible: gk and gK

thomaster · Answer

If you also had a capital G it could produce 4 different gametes: gk, Gk, gK and GK