Changes

[[Fertilisation]] is when one of the stages of [[conception]] in which the [[male]] and [[female]] [[Gamete|sex cells]] come together to make one [[Cell (Biology)|cell]].

#In fertilisation the [[Sperm Cell|sperm cell]] uses enzymes in its head to get through the jelly coat of the [[ovum]]. #The jelly coat of the [[ovum]] then becomes hard, stopping any other [[Sperm Cell|sperm]] throughentering. #The [[Cell Membrane|cell membrane]] of the [[Sperm Cell|sperm cell]] then goes through fuses with the [[Cell Membrane|cell membrane]] of the [[ovum]] and the [[Sperm Cell|sperm cell]] loses its tail. #The [[Cell Nucleus (biology)|nucleus]] of the [[Sperm Cell|sperm cell]] is then released into the [[ovum]] and the [[Cell Nucleus (Biology)|nuclei]] of the [[Sperm Cell|spermovum]] and [[ovumSperm Cell|sperm]] fuse to make one larger [[Cell Nucleus|nucleus]] with all the [[DNA]] needed to make a new [[organism]]. ==Key Stage 4=====Meaning===[[Fertilisation]] is when the [[male]] and [[female]] [[gamete]]s come together to make one [[Cell (Biology)|cell]]. ===About Fertilisation===: During [[fertilisation]] the two [[haploid]] [[gamete]]s fuse together to form a [[diploid]] [[Cell (Biology)|cell]]. ===References=======AQA==== :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f293 ''Fertilisation, page 170, GCSE Biology; Student Book, Collins, AQA '']:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Fertilisation, page 206, GCSE Combined Science Trilogy; Biology, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Fertilisation, page 251, GCSE Biology, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Fertilisation, pages 17, 40, GCSE Combined Science Trilogy 2, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Fertilisation, pages 170, 198-199, GCSE Biology; Third Edition, Oxford University Press, AQA ''] ====Edexcel==== :[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Fertilisation, page 26, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Fertilisation, page 32, GCSE Biology; The Revision Guide, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Fertilisation, page 84, GCSE Biology, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Fertilisation, pages 8, 4, 102, GCSE Combined Science, Pearson Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Fertilisation, pages 8, 50, 52, 146, GCSE Biology, Pearson, Edexcel ''] ====OCR====:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Fertilisation, pages 152, 154, Gateway GCSE Biology, Oxford, OCR '']