Describe how the cells formed by meiosis are different from the cells formed by mitosis

During mitosis a cell undergoes DNA and organelle duplication followed by a single division, each haploid daughter cell produced this way is genetically identical to the parent cell. In contrast to this meiotic cells still must duplicate their organelles, however the DNA is replicated and the cell fuses with another diploid cell, creating a tetraploid cell with 4 copies of each chromatid; and this is followed by two divisions. Firstly each homologous chromosome pair joins together and crossing over may occur, leading to genetic variation. The first division following the crossing over splits the homologous pairs apart, taking with it any exchanged genetic material. The second division splits apart chromosomes into individual chromatids into individual cells, where they are taken is influenced by their orientation, known as independent assortment. This leads to further genetic variation between the four newly formed, unique, daughter cells.

MB
Answered by Mohammed Burhan A. Biology tutor

3263 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What kind of reaction is photosynthesis and what is it's product used for?


What is the reflex arc and how does it protect us?


Humans need to remove (excrete) waste products from the bloodstream. Describe the processes that produce waste products and how the products are removed from the body. (6 marks)


What is asexual reproduction and what are its features?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning