Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.

How do ecosystem respond to nature disasters such as fires and floods

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?