Suppose You Discovered a New Mutation in Mice That Causes

question 54

Multiple Choice

Suppose you discovered a new mutation in mice that causes a curved spine.You noticed that this mutant phenotype is present only in females.When curved-spine females are crossed with normal males, the progeny are always recovered in a 1:1:1 ratio of curved-spine females, normal females, and normal males.Explain the genetic basis for this ratio.

• A)hemizygous or homozygous lethal autosomal allele
• B)hemizygous or homozygous lethal sex-linked allele
• C)recessive sex-linked allele
• D)recessive autosomal allele
• E)dominant sex-linked allele

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Definitions:

Calories

A unit of energy used to quantify the amount of energy provided by food and drink, and energy used by bodily activities.

TPN Solution

Total Parenteral Nutrition, a medical solution given intravenously to provide nutritional support to patients who cannot eat or absorb enough nutrients through their gastrointestinal tract.

Trivializing

The act of making something seem less important or significant than it really is, often minimizing serious issues or reducing the perception of value.

Overly Informal

Describes a style of communication that may be too casual or familiar for the context or audience it is intended for.