Dna is very unstable.

true
false

Which of the following terms describes water that is safe to drink? clean filtered potable sterilized

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. a parakeet that is heterozygous for blue feathers (dominant) is crossed with a parakeet that is homozygous for white feathers (recessive). according to the punnett square for this cross, what percentage of offspring is predicted to have blue feathers? 25 percent 50 percent 75 percent 100 percent

Which of the following factors would not contribute to allopatric speciation? a) the isolated population is exposed to different selection pressures than the ancestral population.b) a population becomes geographically isolated from the parent population. c) gene flow between the two populations is extensive.d) the separated population is small, and genetic drift occurs. e) different mutations begin to distinguish the gene pools of the separated populations.