I NEED HELP 1. What are chromosomes?
2. What are the four phases of mitosis, in the correct order?
3. In what phase of mitosis are chromosomes moving toward opposite sides
of the cell?
4. Compare the two nuclei that form as a result of mitosis?
5. What is cytokinesis, and when does it occur?

1. a chromosome is a dna strand that has genes

2. prophase, metaphase, anaphase, telophase

3. anaphase

4. the two nuclei are identical daughter cells and they have the same number of chromosomes

5. this is when the cell separates forming two new daughter cells and it occurs in the late telophase of mitosis.

sorry if this is wrong but this is how i learned it! hope it helps!

Explanation:

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion