A person with the genetic disorder Klinefelter's syndrome has an extra X chromosome. Affected individuals have the genotype XXY. What can you infer is most likely the genetic mutation that results in Klinefelter's syndrome? (4 points)
a
Complete duplication of chromosomes during polyploidy
b
Non-disjunction during meiosis
c
Translocation during genetic replication
d
Crossing over during meiosis
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Answer:
b.....
due to non disjunction of chromosome of parents
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