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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