Please help very ez, will 5 star, and thanks

As a small change in a person's dna can cause a genetic disorder

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits