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XX is Female XY is Male
A karyotype.
A picture of chromosomes is called a "karyotype."
This particular karyotype has 45 chromosomes (instead of the usual 46). "XO" tells us that the karyotype is missing a sex chromosome: the individual has an X, but no homologous sex chromosome (X or Y) to complete the diploid pair.
Karyotype
The 23rd pair in a karyotype shows if it will be male or female
Heterosomes are the sex chromosomes, i.e.: the 23rd pair of chromosomes in a karyotype. In a human female these are XX, and in a human male they are XY.
XX is Female XY is Male
A karyotype.
A picture of chromosomes is called a "karyotype."
A karyotype is defined as the chromosomes of a cell. The human karyotype has one pair of sex chromosomes and 22 pairs of autosomal chromosomes.
This particular karyotype has 45 chromosomes (instead of the usual 46). "XO" tells us that the karyotype is missing a sex chromosome: the individual has an X, but no homologous sex chromosome (X or Y) to complete the diploid pair.
Karyotype
A karyotype is a visual display of the chromosomes arrangeed by size, shape, and banding pattern.
monosomy.
sex chromosomes
This is known as a karyogram.