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Multiple Choice
Why does the X chromosome express more traits than the Y chromosome in sex-linked inheritance?
A
The X chromosome is larger and contains more genes than the Y chromosome.
B
The Y chromosome has more alleles than the X chromosome.
C
The X chromosome is inherited only from the mother.
D
The Y chromosome is dominant over the X chromosome.
Verified step by step guidance
1
Understand that sex-linked inheritance refers to genes located on the sex chromosomes, X and Y.
Recognize that the X chromosome is significantly larger than the Y chromosome and contains more genes.
Note that because the X chromosome has more genes, it can express more traits compared to the Y chromosome.
Consider that the Y chromosome is smaller and has fewer genes, which limits the number of traits it can express.
Conclude that the reason the X chromosome expresses more traits is due to its larger size and greater number of genes, not because of dominance or inheritance patterns.