What is extinction? Question 4 options:
A. The disappearance of every individual of a species from the entire planet. B. The disappearance of a species from a particular area.
C. Variations within a species.
D. The appearance of a new species to a particular area.

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?