Prenatal screening is much more feasible today, in part because very few cells are needed.What technology has been most responsible for the reduction in the number of cells required?

Question

Quizplus · Accepted Answer

PCR (polymerase chain reaction) technology allows amplification of a small amount of DNA, making it possible to detect genetic markers or mutations using a small amount of biological material. This has greatly reduced the number of cells required for prenatal screening. Electrophoresis, DNA linkage analysis, restriction enzymes, and gene therapy are not directly responsible for this reduction in cell requirement.

Prenatal Screening Is Much More Feasible Today, in Part Because