Akaryotype is a tool one came to use to predict the expected genotypic and phenotypic rations of children resulting from two parents.
a. true
b. false

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.

The commonality is the presence of Hox genes.                                                  Hox genes are a group of genes that control basic body plan formation. They are responsible for the location of body parts and this explains why many organisms or animals share similar body types. For example these genes help lay out the basic body forms in many animals, including humans, flies, and worms. Additionally, they set up the head-to-tail organization.