HEL!! BRAINLIEST TO THE BEST ANSWER---
How can genetic testing be helpful to prospective parents??

Researchers recently renewed calls for all prospective parents to be offered testing for gene mutations that could be transferred to their child. ... Pre-pregnancy or preconception carrier screening allows healthy couples to identify mutations they carry before they become pregnant .

Explanation:

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.