Summary
Mitosis Summary
Summary of the steps of mitosis.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
Seller
Follow
Content preview
6.2 MitosisFirst review @November 8, 2023
Practise Q's Done
The importance of mitosis
mitosis is the process of nuclear division within eukaryotic cells
mitosis produces two genetically identical daughter cells, except when there are
mutations
mitosis is used for cell repair, replacement and growth in multicellular organisms such as
plants, animals and fungi. it is also used for asexual reproduction within unicellular
organisms such as the Amoeba species and and also prokaryotic cells— however
prokaryotic cells use a slightly different process called binary fission
Chromosomes
before mitosis can occur, the DNA is replicated during interphase
each DNA molecule (chromosome) is duplicated into two identical DNA molecules
called chromatids
the two chromatids join at the centromere— it is important to keep the chromatids
together so they can be strategically moved
The stages of mitosis
four stages: prophase, metaphase, anaphase and telophase
prophase
6.2 Mitosis 1
, chromatin fibres (complex made form various proteins, DNA and RNA) coil and
condense— chromosomes become more visible under light microscope
nucleolus begins disappears and nuclear membrane begins to break down
protein microtubules from spindle- shaped structures linking the poles of the cell—
this is necessary to move the chromosomes into the correct positions
in animal cells and some plant cells two centrioles migrate to the poles of the cell to
aid the formation of the spindle
spindle fibres attach to centromeres and begin to move chromosomes to centre of the
cell
by the end of prophase the nuclear membrane would have disappeared
metaphase
spindle fibres move chromosomes by the centromeres to the middle of the cell to
form the metaphase plane— the chromosomes are then held in position
6.2 Mitosis 2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller estherokoruwa3009. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
48756 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now