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barry barry
wrote...
Posts: 11630
11 years ago
X-linked traits are more likely to be expressed in males. Why? Under what circumstances are they expressed in females?
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Staff Member
11 years ago
Males are hemizygous, with only one X chromosome; therefore, any genes on that chromosome are expressed, regardless of whether they are dominant or recessive. Females must be homozygous for a recessive X-linked allele to be expressed.
- Master of Science in Biology
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