Difference between revisions of "Gene"
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| style="height:20px; width:200px; text-align:center;" |A "widow's peak" is controlled by a particular [[gene]]. | | style="height:20px; width:200px; text-align:center;" |A "widow's peak" is controlled by a particular [[gene]]. | ||
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| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | A [[gene]] is a small unit of [[DNA]] that provides instructions for a specific feature of an [[organism]]. | ||
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| + | ===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. | ||
Revision as of 18:37, 18 November 2018
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.
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| 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.