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antoniya [11.8K]
3 years ago
10

In a particular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull

that is heterozygous for coat color, what percentage of their offspring would you expect to be black?
a.25%
b.50%
c.75%
d.100%
Chemistry
1 answer:
larisa86 [58]3 years ago
3 0
C.75%. Because the B is dominant 
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To solve this problem, we must assume ideal gas behaviour so that we can use Graham’s law:

vA / vB = sqrt (MW_B / MW_A)

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<span>vA = speed of diffusion of A  (HBR)</span>

vB = speed of diffusion of B (unknown)

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We know from the given that:

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Since this unknown is also hydrogen halide, therefore this must be in the form of HX.

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