Usually occur during DNA replication, before a cell divides. Chromosomal mutations
Gene mutations
Sex-linked mutations
Metaphase mutations

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

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?