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10 Cards in this Set
- Front
- Back
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What are genes? |
Genes are INSTRUCTIONS that determine our body's characteristics e.g appearance, metabolism and behaviour |
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Genes are inherited but can be subject to |
environmental influences such as radiation |
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How many genes do humans have? |
20,000 to 25,000 and each gene codes for a different protein |
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Proteins determine... |
a cell's structure and function |
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Why are cells specialised? |
because of the different proteins that they make
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What is a genome? |
the complete set of genes or genetic material (instructions) present in a cell or organism. * only a few thousand are used in each cell |
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What is a Genotype? |
the genetic constitution of an organism
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What is a phenotype?
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the PHYSICAL characteristic of an organism or cell (Phenotype result from interaction between the genotype and environment) |
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DNA |
DNA is what genes are made up of |
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Gene |
is a sequence of bases that contains all the info necessary to make a specific protein |
