Mitosis

• Biology
• Upper Secondary (Key Stage 4)
• GCSE

Mitosis

Mitosis starts with a _____ cell

1. parent
2. daughter

Why is mitosis important? (Pick 2)

1. For growth and photosynthesis
2. For growth and repair
3. For development and sexual reproduction
4. For development and asexual reproduction

Cells divide into

1. two identical cells called parent cells
2. two identical cells called daughter cells

Cell cycles cells go through

1. Changes
2. colour changes

During cell cycles cells _____ and _____

1. Divide and split
2. Divide and grow

Sexual Reproduction

Asexual Reproduction

requires 2 parents

Allows for quick colonisation of a new area

Only requires 1 organism

creates diversity which increases a species chance of survival

uses mitosis to make new organisms

uses meiosis to make gametes

the offspring are genetically identical to the parents

Offspring are genetically 50% similar to parents

Mitosis

Meiosis

Genetic Mixing happens

New cells show variation

Gamete production occurs

New cells have the same number of chromosomes are parent

Happens in skin cells

Two divisions occur

Identical cells are formed

Two new cells are formed as a result

Drag the statements to the right part of the venn diagram

Mitosis only

Mitosis and Meiosis

Meiosis only

Creates genetically identical cells

Creates 4 cells

Creates 2 cells

Creates cells that are genetically different to each other and the parent

Daughter cells contain same number of chromosomes

Daughter cells contain half the number of chromosomes

makes body cells

makes gametes

is a form of cell division

is needed to create a human baby

used for growth and repair

has one round of division

has two rounds of division

DNA replicates before it

Mitosis happens in....

1. Body cells
2. Gametes (sex cells)