What is the purpose of using a pedigree

Explanation:

Pedigrees are diagrams that show the phenotype and/or genotype of a person's family members. They are very useful to determine if a certain trait or disease is dominant or recessive, sex-linked or autosomal.

They are extensively used for genetic counseling, because they can reveal the probability that a couple has a diseased child and help them plan accordingly in order to minimize those probabilities and maximize those of having healthy children.

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explanation:

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.