Question

1. in another one of mendels experiments, he crossed the offspring. two pea plants with purple flowers (pp) were crossed. purple flowers purple flowers p p genotype probability (%) phenotype probability (%) pp 0% purple flowers: 0% pp 0% white flowers: 0% pp 0%

Explanation:

Step1: Fill in the Punnett square

The Punnett square for \(Pp\times Pp\) is:

	\(P\)	\(p\)
\(p\)	\(Pp\)	\(pp\)

Step2: Calculate genotype probabilities

There are 4 possible outcomes.

• For \(PP\): There is 1 out of 4, so the probability is \(\frac{1}{4}=25\%\)
• For \(Pp\): There are 2 out of 4, so the probability is \(\frac{2}{4} = 50\%\)
• For \(pp\): There is 1 out of 4, so the probability is \(\frac{1}{4}=25\%\)

Step3: Calculate phenotype probabilities

Since \(P\) (purple) is dominant over \(p\) (white).

• \(PP\) and \(Pp\) show purple flowers. There are \(1 + 2=3\) out of 4, so the probability of purple flowers is \(\frac{3}{4}=75\%\)
• \(pp\) shows white flowers. There is 1 out of 4, so the probability of white flowers is \(\frac{1}{4}=25\%\)

Answer:

Genotype Probability (\%):

• \(PP\): \(25\%\)
• \(Pp\): \(50\%\)
• \(pp\): \(25\%\)

Phenotype Probability (\%):

• Purple Flowers: \(75\%\)
• White Flowers: \(25\%\)