The Following Cross Produced 125 Progeny: AaBbCcDd × AaBbccDD

question 51

Essay

The following cross produced 125 progeny: aaBbCcDd × AaBbccDD. Assume all the genes assort independently and that the uppercase letters represent dominant alleles.
a. How many offspring are expected to express the phenotype ABCD?
b. How many offspring are expected to have the genotype aaBBccDd?
c. How many offspring are expected to have the genotype AaBbCcDd?

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Definitions:

One-Tailed

A hypothesis test where the area of interest is only on one side of the distribution, testing for a direction-specific outcome.

Adrenal Glands

Small, triangular-shaped glands located on top of both kidneys that produce hormones such as adrenaline and cortisol involved in stress and metabolic responses.

Endocrine

Relating to glands that secrete hormones directly into the blood rather than through a duct.

Exocrine

Pertains to glands that secrete their products through ducts directly into the external environment or onto body surfaces.