Apopulation of red squirrelfish breeds and produce offspring, 75% are still red but 25% are yellow. this variation in the color of the squirrelfish can be explained by

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

The lineage of pea plants produced round seeds for four generations. the plants that fertilized these pea plants also produced round seeds. however, in the fifth generation, the plant produced to two plants with wrinkled seeds. can that be possible?

Evolution acts upon the population of organisms and not on each individual organism