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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What does DNA stand for? |
Deoxyribonucleic acid |
Dioxide ribbon nucleus |
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Where is DNA found? |
In the nucleus of animal and plant cells, in really long molecules called chromosomes. |
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What structure does a DNA molecule have? |
A double helix structure |
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What is a gene? |
A section of DNA that contains the obstruction to make a specific protein. |
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How do cells make proteins |
By stringing amino acids together to make a specific protein |
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How many amino acids are used to make proteins? |
20 (but they make up thousands of different proteins) |
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What does DNA determine? |
What proteins the cells produces (e.g. haemoglobin, keratin) which determines the type of cell it is (e.g. red blood cell, skin cell) |
What the cells produces |
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Almost everyone's DNA is ____ other than identical twins. |
Unique |
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What is DNA (genetic) fingerprinting? |
A way of cutting up a person's DNA into small sections and then separating them. |
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DNA fingerprinting is used in... |
Forensic science Paternity testing |
2 things |
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How many pairs of chromosomes are there in a human cell? |
23 but the 23rd pair is different as it decides whether a person will be a female or male. (X and Y chromosomes) |
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What is mitosis? |
Mitosis is when a cell reproduces itself by splitting to form two identical offspring. |
Definition |
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When is mitosis used? |
When plants and animals want to grow or to replace cells that have been damaged. |
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