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they have a extra chromosome, a normal male is XY, a male with klinefelters is XXY.
Yes i belive it is ny g
X-linked
I don't know tell me the answer
a taco
Physically, no; mentally, that's up to the strength of the individual.
Klinefelters is sex chromosome trisomy. Down Syndrome is trisomy. One of the most common forms of MD is sex-linked and affects boys more frequently than it does girls.
Yes animals do sometimes have Turner's syndrome or Klinefelter's syndrome with similar characteristics as those observed in humans.
Klinefelters Syndrome
No. People with Klinefelter's syndrome have a normal Y chromosome and 2 normal X chromosomes.
Yes. Enlarged Breasts is one characteristic
Nondisjunction, or sending both chromosomes to one cell during meiosis.