PLEASE HELP I DO NOT UNDERSTAND

What happens during the experiment stage of the scientific method

Reviewing natural selectionhtquick checkmatch each scenario with the correct component of natural selection. on average, sea turtles lay about 110 eggs in a clutch. however, only a fraction of thebaby turtles make it to the ocean. then, an even smaller number have offspring of their own." while all zebras have stripes, no two zebras share the same stripe pattern. a lemur species called aye-ayes have very long, thin middle fingers that allow them toreach into holes in trees and dig out bugs to eat. done7intro

What is expressed when both alleles for a gene are equally expressed as in human blood type?