First off, the syntax of your question is off. Male chromosomes are XY and there are chromosomes INSIDE the egg. If the egg is not fertilized, there is only an X. If it is, it could add an X or a Y from the male, making it XX female or XY male.
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The number of genes varies from chromosome to chromosome and the number of chromosomes varies from species to species (from as few as 1 single chromosome per cell to as many 30,000 chromosome pairs per cell). Human cells have 23 chromosome pairs per cell.
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there are 23 chromosome pairs in a human cell
Many sex-linked genes are found on the X chromosome. More than 100 sex-linked genetic disorders have now been mapped to the X chromosome. The human Y chromosome is much smaller than the X chromosome and appears to contain only few genes.
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humans have 23 pairs of chromosomes for a total of 46 chromosomes the last pair is the sex chromosome so the sex chromosome is its own chromosome. the sex chromosome decides witch gender a person is. and everybody starts out female the way you become male is if a y shows up.
At metaphase I of meiosis in a male individual, there are 223 (8,388,608) different chromosome alignments possible.
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It depends on the species.