Free Powerpoint Presentations

Mitosis and Meiosis
Page
1

DOWNLOAD

PREVIEW

WATCH ALL SLIDES

Slide 1

Mitosis and Meiosis

Mitosis and Meiosis

Higher Biology

Slide 2

Mitosis and Meiosis

Mitosis and Meiosis

Mitosis:

-division of somatic (body) cells

Meiosis

-division of gametes (sex cells)

Slide 3

Mitosis

Mitosis

Interphase

Prophase

Metaphase

Anaphase

Telophase

Slide 4

Interphase

Interphase

Interesting things happen!

Cell preparing to divide

Genetic material doubles

Slide 5

Prophase

Prophase

Chromosome pair up!

Chromosomes thicken and shorten

-become visible

-2 chromatids joined by a centromere

Centrioles move to the opposite sides of the nucleus

Nucleolus disappears

Nuclear membrane disintegrate

Slide 6

Prophase

Slide 7

Metaphase

Metaphase

Chromosomes meet in the middle!

Chromosomes arrange at equator of cell

Become attached to spindle fibres by centromeres

Homologous chromosomes do not associate

Slide 8

Metaphase

Slide 9

Anaphase

Anaphase

Chromosomes get pulled apart

Spindle fibres contract pulling chromatids to the opposite poles of the cell

Slide 10

Telophase

Telophase

Now there are two!

Chromosomes uncoil

Spindle fibres disintegrate

Centrioles replicate

Nucleur membrane forms

Cell divides

Slide 11

Telophase

Slide 12

Telophase

Slide 13

Telophase

Slide 14

Meiosis

Meiosis

4 daughter cells produced

Each daughter cell has half the chromosomes of the parent

2 sets of cell division involved

Slide 15

Contents

Last added presentations

© 2010-2018 powerpoint presentations