A Recessive Allele Is One

question 35

Multiple Choice

A recessive allele is one

• A) that is not expressed as strongly as a dominant allele.
• B) that appears only in a heterozygote.
• C) that must be lethal in the homozygous condition.
• D) that produces no effect when present in the homozygous condition.
• E) whose effect is masked when paired with a dominant allele.

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Definitions:

Precursor Cells

Cells that have the capacity to differentiate into more specialized cells, often referred to as stem cells.

Osteoblast

A type of cell responsible for bone formation, playing a crucial role in bone growth and repair.

Calcium

A chemical element vital for bone formation, muscle contraction, nerve function, and blood clotting in the body.

Phosphate Ions

Negatively charged ions made of a phosphorus atom surrounded by four oxygen atoms crucial in energy transfer and storage in biological organisms.