If a plant has Ttyy, what genetic combinations could be present in a single grain of pollen? Does Ttyy represent two different traits? How is a allele combinated four-lettered? Thanks!
If a plant has Ttyy, what genetic combinations could be present in a single grain of pollen?
1. Half of the pollens will have Ty and the other half of the pollens will have ty.
2. Yes, Ttyy represents two different traits. Imagine that in peas T is tall and t is short. Y is yellow and y is green seeds. Then Ttyy is a tall plant with green seeds.
3. It takes 4 letters to tell about two traits because each trait is governed by two alleles (two genes). The plant got a T or t from each parent and the plant got a Y or y from each parent.
Reply:The T's and the Y's are two different traits, so here you are talking about two alleles. If they behave like unjoined traits, the combinations would be Ty and ty.
Reply:Yes Ttyy represents two different traits. Tt is one trait and yy is another. The possible genetic combinations in a single grain could be TTYY, TTYy, TtYY, TtYy, TTyy, Ttyy, ttYY, ttYy, ttyy. The combination be be many letters AaBbCcDdEeFf, each representing a different trait
The only time the pollen will be Ty and ty alone will be within the gametes.
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