Answer:
a. True
Explanation:
Karyotype is a set of chromosomes whose number and morphology are characteristic of a species or its gametes. The morphology of these chromosomes is constant for the species, however the number may vary in cases of chromosomal alterations.
By assembling a karyotype it is possible to determine the expected genotypic and phenotypic rates of children resulting from two parents. Thus, it is possible to perceive normalities or abnormalities (chromosomal syndromes), caused by mutagenic changes, polysomies or monosomies.
An example is the detection of Down syndrome, a genetic alteration that has three chromosomes 21.
