Which statement describes a scientific law? O A law states how something behaves and explains why.
O A law is a proven fact that cannot be changed.
O A law changes based on new observations and testing.
O A law is based on a single hypothesis or observation.

Some steps in cell division are shown below: 1. chromosomes condense and pair up 2. segments of dna of sister chromatids twist and cross 3. exchange of dna occurs between chromosomes 4. four daughter cells are created that are haploid which of the following steps is least likely to occur during meiosis 1?