null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
4688912
Mitosis
Description
A-Level Biology (Cell Division) Mind Map on Mitosis, created by Fauzia Ali on 29/02/2016.
No tags specified
biology
cell division
a-level
Mind Map by
Fauzia Ali
, updated more than 1 year ago
More
Less
Created by
Fauzia Ali
over 8 years ago
6
1
0
Resource summary
Mitosis
Chromosomes
DNA wound tightly around proteins called histone
Normally unwound (Chromatin)
Before cell division, replicates and winds to form chromosomes (visible)
Twice the DNA
Made of two structures called CHROMATIDS held by a CENTROMERE
Prophase
Chromosomes visible as they thicken and shorten
Two identical chromatids
Animal cells: centrioles divide and move to opposite poles
Start to form spindle
Nuclear membrane disintegrates
Nucleolus disappears
Metaphase
Chromosomes arrange at the equator
Chromosomes attached to spindle by centromere
Anaphase
Spindle fibres contract
Centromeres split so chromatids pulled apart
Separate chromatids now called CHROMOSOMES
Very fast
Telophase
Chromosomes reach poles
Chromosomes uncoil and lengthen
Spindle breaks down
Nuclear membranes reforms
Nucleoli reappears
Cytokinesis
Centrioles divide and move to poles
Membrane furrows and cytoplasm splits
Daughter cells have all organelles needed
Significance
Growth
Repair damaged tissue
Cell replacement
Asexual repoduction
Bulbs
Large number of offspring for colonisation
Produces
4 genetically identical daughter cells
Diploid
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
Mitosis
Selam H
Biology AQA 3.2.5 Mitosis
evie.daines
Biology AQA 3.1.3 Cells
evie.daines
Biology AQA 3.1.3 Osmosis and Diffusion
evie.daines
Biology- Genes, Chromosomes and DNA
Laura Perry
Biology- Genes and Variation
Laura Perry
Enzymes and Respiration
I Turner
GCSE AQA Biology - Unit 2
James Jolliffe
GCSE AQA Biology 1 Quiz
Lilac Potato
Using GoConqr to study science
Sarah Egan
Cells and the Immune System
Eleanor H
Browse Library