Difference between revisions of "Gene"
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===About Genes=== | ===About Genes=== | ||
: There is a [[gene]] that controls eye colour with a different version of the gene for each colour. | : There is a [[gene]] that controls eye colour with a different version of the gene for each colour. | ||
| − | : There is a [[gene]] that controls whether a person has a | + | : There is a [[gene]] that controls whether a person has a widow's peak or not. |
: There are a number of [[gene]]s that control the colour of a person's skin or the shape of their nose. | : There are a number of [[gene]]s that control the colour of a person's skin or the shape of their nose. | ||
| Line 27: | Line 27: | ||
===About Genes=== | ===About Genes=== | ||
: There can be several [[allele]]s of the same [[gene]]. A [[human]] will inherit one [[allele]] of a [[gene]] from their mother and another [[allele]] of a [[gene]] from their father. | : There can be several [[allele]]s of the same [[gene]]. A [[human]] will inherit one [[allele]] of a [[gene]] from their mother and another [[allele]] of a [[gene]] from their father. | ||
| − | : [[Gene]]s | + | : Only some characteristics are [[Coding DNA|coded]] for by one [[gene]]. Most characteristics are controlled by a large number of [[gene]]s in the [[genome]]. |
| + | [[Gene]]s can be divided into two categories: | ||
| + | *[[Coding DNA]] - [[Gene]]s which are '[[Gene Expression|expressed]]' which means used as the templates for [[Protein Synthesis|protein synthesis]]. | ||
| + | *[[Non-coding DNA]] - [[Gene]]s which affect whether other [[gene]]s will be [[Gene Expression|expressed]]. These [[gene]]s are said to 'turn off' parts of the [[DNA]] and can respond to environmental changes. | ||
| + | |||
| + | ===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=27ad53b0283feeff7fc5ae04a9e205f320 ''Gene, pages 24-2, 32, 236-9, 300-1, 304-5, 308-9, GCSE Biology; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09931 ''Genes, pages 15, 66, GCSE Combined Science; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Genes, pages 15, 84, GCSE Biology; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Genes, pages 19,183-4, GCSE Biology, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Genes, pages 19-20, GCSE Combined Science Trilogy 1, Hodder, 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 ''Genes, pages 34, 204, 217, 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 ''Genes, pages 34, 244, 265, 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 ''Genes, pages 34, 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 ''Genes, pages 6,8, 26-27, 199, 206-213, 224-225, 227, 230-231, 234-235, 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 ''Genes, page 27, 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 ''Genes, pages 34, 35, GCSE Biology; The Revision Guide, 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 ''Genes, pages 40, 63, 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 ''Genes, pages 52, 85, GCSE Biology, Pearson, 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 ''Genes, pages 89, 93, GCSE Biology, CGP, 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 ''Genes, page 28, Gateway GCSE Biology, Oxford, OCR ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Genes, pages 16, 66-71, 89, 90, Gateway GCSE Biology; The Revision Guide, CGP, OCR ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Genes, pages 48, 51, 52, 66, 80, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR ''] | ||
Latest revision as of 14:25, 11 December 2019
Contents
Key Stage 3
Meaning
A gene is a small unit of DNA that provides instructions for a specific feature of an organism.
About Genes
- There is a gene that controls eye colour with a different version of the gene for each colour.
- There is a gene that controls whether a person has a widow's peak or not.
- There are a number of genes that control the colour of a person's skin or the shape of their nose.
 |
 |
 |
 |
| An eye colour gene controls the colour of a person's eyes. | There are several genes that determine the number of spots on a dalmatian. | The shape of bird's beak is caused by a number of genes working together. | A "widow's peak" is controlled by a particular gene. |
Key Stage 4
Meaning
A gene is a small unit of DNA that provides instructions for a specific feature of an organism.
About Genes
- There can be several alleles of the same gene. A human will inherit one allele of a gene from their mother and another allele of a gene from their father.
- Only some characteristics are coded for by one gene. Most characteristics are controlled by a large number of genes in the genome.
Genes can be divided into two categories:
- Coding DNA - Genes which are 'expressed' which means used as the templates for protein synthesis.
- Non-coding DNA - Genes which affect whether other genes will be expressed. These genes are said to 'turn off' parts of the DNA and can respond to environmental changes.
References
AQA
- Gene, pages 24-2, 32, 236-9, 300-1, 304-5, 308-9, GCSE Biology; Student Book, Collins, AQA
- Genes, pages 15, 66, GCSE Combined Science; The Revision Guide, CGP, AQA
- Genes, pages 15, 84, GCSE Biology; The Revision Guide, CGP, AQA
- Genes, pages 19,183-4, GCSE Biology, Hodder, AQA
- Genes, pages 19-20, GCSE Combined Science Trilogy 1, Hodder, AQA
- Genes, pages 34, 204, 217, GCSE Combined Science Trilogy; Biology, CGP, AQA
- Genes, pages 34, 244, 265, GCSE Biology, CGP, AQA
- Genes, pages 34, GCSE Combined Science Trilogy 2, Hodder, AQA
- Genes, pages 6,8, 26-27, 199, 206-213, 224-225, 227, 230-231, 234-235, GCSE Biology; Third Edition, Oxford University Press, AQA
Edexcel
- Genes, page 27, GCSE Combined Science; The Revision Guide, CGP, Edexcel
- Genes, pages 34, 35, GCSE Biology; The Revision Guide, CGP, Edexcel
- Genes, pages 40, 63, GCSE Combined Science, Pearson Edexcel
- Genes, pages 52, 85, GCSE Biology, Pearson, Edexcel
- Genes, pages 89, 93, GCSE Biology, CGP, Edexcel