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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.

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

Respuesta :

JcAlmighty
a) The image is attached

b) There are in total 16 genotypes.
The possibilities of each genotypes are:
PpTT - 4/16 = 1/4 = 25%
PpTt - 4/16 = 1/4 = 25%
ppTT - 4/16 = 1/4 = 25%
ppTt - 4/16 = 1/4 = 25%

c) There are in total 4 different phenotypes: purple and tall, purple and short, white and tall, and white and short.
PpTt and PpTT are purple and tall: 2/4 = 1/2 = 50%
ppTT and ppTt are white and tall: 2/4 = 1/2 = 50%
Ver imagen JcAlmighty
cosa2dos

Answer:

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.

Explanation:

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