Cell Cycle and Mitosis

Front

What happens to the DNA before cells can divide?

Back

It is replicated.

Front

How many chromosomes do humans have?

Back

46.

Front

What is the first phase of mitosis?

Back

Prophase.

Front

What occurs during prophase of mitosis?

Back

Chromosomes condense and become visible; the nuclear envelope begins to break down.

Front

What is the second phase of mitosis?

Back

Metaphase.

Front

What happens during metaphase of mitosis?

Back

Chromosomes align in the middle of the cell.

Front

What is the third phase of mitosis?

Back

Anaphase.

Front

What occurs during anaphase of mitosis?

Back

Sister chromatids separate and move to opposite poles of the cell.

Front

What is the fourth phase of mitosis?

Back

Telophase.

Front

What happens in telophase of mitosis?

Back

The chromosomes uncoil into chromatin; the nucleus reappears; spindles disappear.