In pea plants, purple flowers (P) are dominant over white flowers (p) and tall stems (T) are dominant over short stems (t). Complete a dihybrid cross for parents with the genotypes: PpTT × ppTt and answer the following in complete sentences.

Describe how you would set up a Punnett square for this cross.
List the likelihood of each possible offspring genotype.
List the likelihood of each possible offspring phenotype.

Question

In pea plants, purple flowers (P) are dominant over white flowers (p) and tall stems (T) are dominant over short stems (t). Complete a dihybrid cross for parents with the genotypes: PpTT × ppTt and answer the following in complete sentences.

Describe how you would set up a Punnett square for this cross.
List the likelihood of each possible offspring genotype.
List the likelihood of each possible offspring phenotype.

jack1 · Answer

attachment

jack1 · Answer

heya lysssa

anonymous · Answer

hey

jack1 · Answer

dammit i didnt read the whole question, sorry

anonymous · Answer

its okay

jack1 · Answer

|dw:1372224510116:dw|

jack1 · Answer

so you've only got 2 plant types
but there are a couple pf combinations each could come out with

anonymous · Answer

okay so how would i describe that?

thomaster · Answer

There are 2 combinations for the genotype PpTT (PT and pT) and also 2 combinations for ppTt (pT and pt)
So you punnett would look like this:
|dw:1372235793855:dw|

thomaster · Answer

For the hybrid cross you attached, they use 2 genotypes with 4 combinations (RrYy = RY + Ry + rY + ry)  
That's why that punnett square has 16 boxes and yours only 4

jack1 · Answer

@lyssa_shipley1
i'm so sorry for disappearing halfway through, my laptop died
cheers @thomaster  for answering