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loris [4]
3 years ago
10

Blue moon beans produce beans that are either the dominant color blue or the recessive color white The bean pods for this specie

s always contain four seeds each. Two heterozygous plants that each have the Bb genotype are crossed.
Part A
What is the predicted frequency if there are four blue beans in pod? Express your answer to three decimal places.
Part B
What is the predicted frequency if there are three blue and one white bean in pod? Express your answer to three decimal places.
Part C
What is the predicted frequency if there are two blue and two white beans in pod? Express your answer to three decimal places
Part D
What is the predicted frequency if there are one blue and three white beans in pod? Express your answer to three decimal places.
Part E
What is the predicted frequency if there are four white beans in pod? Express your answer to three decimal places.
Biology
1 answer:
liq [111]3 years ago
7 0

Answer:

a) 0.316

b) 0.105

c) 0.035

d) 0.0117

e) 0.0039

Explanation:

When two heterozygous plants with genotype Bb are crossed, following offspring are produced

Bb * Bb

BB, Bb, Bb, bb

so the probability of blue offspring is \frac{3}{4} and the probability of white offspring is \frac{1}{4}

a) Probability of all 4 peas as blue

\frac{3}{4} * \frac{3}{4} * \frac{3}{4} * \frac{3}{4} \\= \frac{81}{256} \\= 0.316

b) Probability of 3 blue and 1 white

\frac{3}{4} * \frac{3}{4}* \frac{3}{4}* \frac{1}{4}\\= \frac{27}{256} \\= 0.105

c) Probability of 2 blue and 2 white

\frac{3}{4} * \frac{3}{4}* \frac{1}{4}*\frac{1}{4}\\= 0.035

d) Probability of 1 blue and 3 white

\frac{3}{4} * \frac{1}{4} * \frac{1}{4}* \frac{1}{4}\\= \frac{3}{256} \\= 0.0117

e) Probability of all white

\frac{1}{4} * \frac{1}{4} * \frac{1}{4} * \frac{1}{4} \\= \frac{1}{256} \\= 0.0039

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