Which of the Following Is Evidence Supporting the Lyon Hypothesis

question 67

Multiple Choice

Which of the following is evidence supporting the Lyon hypothesis of X inactivation?

• A)Female mammals that are heterozygous for X-linked traits are phenotypic mosaics.
• B)A highly condensed structure is consistently observed in female cells,but not in normal male cells.
• C)A female cat that is homozygous for coat color cannot have a calico phenotype.
• D)Calico patterns of coat color are never exactly the same.
• E)All of these are correct

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Definitions:

Authority

The power or right to give orders, make decisions, and enforce obedience.

Energy

Pertains to the capacity for vigorous activity and the power to do work, essential for both physical and mental tasks.

Positive Feedback

Encouraging comments or critiques aimed at reinforcing desired behaviors or achievements.

Vitality

The state of being strong, active, and full of energy; often associated with health and vigor.