The normal human karyotype contains:

Indicate the origin of each chromosome present in each pair.

Indicate the number of pairs of autosomal chromosomes in a normal human karyotype

The presence of two homologous sex chromosomes (XX) and 44 autosomes means that the individual is a

The presence of Y sex chromosome means that the sex of the individual is:

The number of chromosomes in the karyotypes of two normal brothers is the same, since:

The chromosomal formula of a normal girl is:

The chromosomal formula of a Trisomy 21 boy is:

Individuals having XXY sex chromosomes are:

The chromosomes of normal human beings:

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