Mitosis

Question 1

The cell cycle

Answer 1

In eukaryotes, the cell cycle consists of four discrete phases: G1, S, G2, and M (in that order) . The S or synthesis phase is when DNA replication occurs, and the M or mitosis phase is when the cell actually divides. The other two phases — G1 and G2, the so-called gap phases — are less dramatic but equally important. Initially, in the G1 phase, the cell grows physically and increases the volume of both protein and organelles. Finally, the G2 phase involves further cell growth and organization of cellular contents.

Question 2

How mutations can occur in the cell cycle

Answer 2

Mutations can result errors in DNA replication or from the damaging effects of mutagens, such as chemicals and radiation, which react with DNA and change the structures of individual nucleotides

Question 3

how does mitosis create two genetically identical daughter cells

Answer 3

During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.

Question 4

MAKE SURE YOU KNOW HOW TO DRAW IT