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Wagyu cattle can exhibit Spherocytosis, a recessive trait that causes calves to be born weak and...

Wagyu cattle can exhibit Spherocytosis, a recessive trait that causes calves to be born weak and smaller than normal with severe anemia. In most cases this disorder is lethal, however, some affected cattle survive into adulthood.

On one particular Wagyu ranch, approximately 3% of the Spherocytosis calves make it to adulthood and are able to reproduce.

In terms of selection and associated allele frequencies, what would the relative fitness be for a Spherocytosis animals on this ranch?

Report your answer as 2-decimal places (i.e. 0.25).

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Answer #1

If reproductive rate is equal for all calves, then the relative fitness will be calculated in following way-

Survival rate for 3% surviving calves= 0.03

Hence relative fitness= survival rate/maximums survival rate

=0.03/0.03

=1.

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