Genetics Class 1

Mitosis

Prophase

Metaphase

Anaphase

Telophase

Prophase

Pack DNA/Condense, Break down Nucleous

Metaphase

duplicated chromosome line up in middle

Anaphase

Pull apart duplicated chromosome

Telophase 

Take cell back ( unwind DNA, reform nucleus, nucleous envelope

Interphase

G1+s+G2

G1

Cell grows, produces proteins and organelles

S phase (Synthesis)

DNA replication (each chromosome duplicates to form sister chromatids)

G₂ phase (Gap 2)

Cell prepares for division, checks DNA replication accuracy

M phase (Mitosis)

Division of nucleus into two identical daughter nuclei

Cytokinesis

Division of cytoplasm → two daughter cells

What are the uses of mitosis?

• repair

• maintenance

• growth and development

• Asexual reproduction

What are the use of meosis

• make gametes

• make spores

• Create genetic variation

• 1. crossonver, recombine prophsase 1

• 2. Line up homologous pair

• 3. Random fertilizaiton