In which of the following scenarios would the use of genetic screening not be beneficial?

a baby in the womb who shows evidence of a heart defect and smaller than normal limbs.

a young man who is acting erratically and slurring words with a history of drug use.

a young woman who's mother and grandmother both were diagnosed with breast cancer.

a man is a carrier of the autosomal dominant allele for huntington's disease and wants to have children with his wife.

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary