A karyotype is an image of an organism's genes. An example is shown below.
Human karyotype
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By grouping images of a fetus' homologous pairs together and arranging them by shape and size, scientists can easily see whether
the baby has
Genetic conditions such as trisomy (three chromosomes) or monosomy (only one chromosome). They can also determine the fetus' gender by looking at the XY / XX chromosomes.
