Punnett Practice

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Punnett Practice
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T. Trimpe 2008 http//sciencespot.net/
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1. Predict the offspring from a cross between a
purebred pea plant with purple flowers and a pea
plant with white flowers. Use P for purple and p
for white. (a) Give the genotypes.
Purebred Purple ____ White ____ (b)
Create a Punnett square to determine the
genotypes for the offspring. (c) What is the
probability that a plant would have purple
flowers? _______ (d) What is the probability
that a plant would have white flowers? _______
2. If you crossed two hybrid plants with
purple flowers and planted 200 of the seeds, how
many would you expect to have with white flowers.
Create a Punnett square to support your answer.
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1. Predict the offspring from a cross between a
purebred pea plant with purple flowers and a pea
plant with white flowers. Use P for purple and p
for white. (a) Give the genotypes.
Purebred Purple ____ White ____ (b)
Create a Punnett square to determine the
genotypes for the offspring. (c) What
is the probability that a plant would have purple
flowers? (d) What is the probability that a
plant would have white flowers?
PP
pp
100
0
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2. If you crossed two hybrid plants with purple
flowers and planted 200 of the seeds, how many
would you expect to have with white flowers.
Create a Punnett square to support your answer.