Which of the Following Statements Correctly Explains the Observation That

question 17

Multiple Choice

Which of the following statements correctly explains the observation that parents with two different phenotypes produced offspring with a phenotype that is a blend of the two parental varieties?

• A) Neither of the parental alleles is dominant over the other.
• B) Both of the parents have dominant alleles.
• C) Neither of the parental alleles is expressed in the offspring
• D) Both of the parents are homozygous at that locus

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Definitions:

Z Disk

A structure within the sarcomere of muscle fibers that serves as the attachment site for actin filaments, marking the boundary between sarcomeres.

Sarcomere

The structural unit of a muscle fiber, consisting of a repeating sequence of actin and myosin filaments, responsible for muscle contraction.

Actin Myofilament

A protein filament essential to muscle contraction, part of the thin filaments in muscle fibers that slide over myosin for muscle movement.

Intercalated Disks

Specialized connections between cardiac muscle cells that facilitate the synchronized contraction of the heart.