Crossing of a Homozygous Wild Type with a Mutant That

question 49

Multiple Choice

Crossing of a homozygous wild type with a mutant that is heterozygous for a dominant mutation will result in F₁ progeny of which

• A)all show the mutant phenotype.
• B)half show the wild-type phenotype and half show the mutant phenotype.
• C)three-fourths show the wild-type phenotype and one-fourth show the mutant phenotype.
• D)all show the wild-type phenotype.

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Definitions:

Stress

A physical or psychological response to internal or external pressures or threats, often characterized by feelings of tension and anxiety.

Intellectual Disability

A disability characterized by significant limitations both in intellectual functioning and in adaptive behavior, which covers many everyday social and practical skills.

IQ Score

A measure of a person's reasoning and problem-solving abilities, often used to assess intellectual potential and capabilities.

Severe Intellectual Disability

Intellectual disability in which IQ scores range from around 20 or 25 to 35 or 40.