If a Single Crossover Occurs During Mitosis in Heterozygotes, Then

question 28

Multiple Choice

If a single crossover occurs during mitosis in heterozygotes, then

• A) loci distal to the crossover on the same chromosome arm may become homozygous.
• B) recessive phenotypes can be expressed.
• C) phenotypic changes are not observed.
• D) only wild-type phenotypes are observed.
• E) Both A and B

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Definitions:

Utricle

A part of the inner ear involved in sensing linear accelerations and head-tilts in the horizontal plane, contributing to balance and spatial orientation.

Semicircular Canals

Structures in the inner ear that are part of the vestibular system, helping to control balance and spatial orientation by detecting rotational movements.

Maculae

Specialized structures in the vestibular system of the inner ear, involved in sensing linear acceleration and gravity.

Static Equilibrium

The condition in which a physical system is at rest or its center of mass moves at a constant velocity, showing no net change in motion.