Of the roughly 3 billion base pairs total in humans, roughly how many show individual differences? One hundred
Ten thousand
Six million
Two billion

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