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maitripatel18651 maitripatel18651
  • 27-05-2024
  • Biology
Answered

Which definition below describes abnormalities of the sex chromosomes?
A. The presence of an extra chromosome (either X or Y) or the absence of one X in females
B. When a harmful allele is carried on the X chromosome
C. A failure of the 21st pair of chromosomes to separate during meiosis

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