Term
what is the chromosome theory of inheritance?
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Definition
| genes are carried from parents to offspringon chromosomes. |
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Term
| walter sutton discovered that the sex cells of grasshoppers have__________. |
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Definition
| half the # of chromosomes found in body cells. |
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Term
| what happens during meiosis? |
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Definition
| chromosome pairs seperate and are distributed into new sex cells. |
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Term
| when sex cells combine to produce offspring each cell will contribute____________. |
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Definition
| half the # of chromosomes in body cells |
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Term
| whar determines genetic code? |
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Definition
| the order of nitrogen bases along a gene |
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Term
| what does messanger RNA do during protein synthesis? |
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Definition
| copies coded message from DNA and carries it into the cytoplasm. |
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Term
| what do transfer RNA molecules do during protein synthesis? |
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Definition
| carry amino acids and add them to the growing protein. |
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Term
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Definition
| a change in a gene or chromosome |
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Term
| a mutation is harmful to an organism if it __________. |
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Definition
| reduces the chances of the organism's survival and reproduction |
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Term
| which term refers to the physical characteristics that are studies in genetics? |
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Definition
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Definition
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Term
| the diffrent forms of a gene are called __________. |
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Definition
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Term
| chromosmes are made up of ___________. |
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Definition
| many genes joined together |
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Term
| in a scientific experiment a statement that describes how to measure a particular variable or define a particular term is a(n)______________________. |
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Definition
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Term
| scientists can communicate their results ____________. |
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Definition
| 1)at scientific meetings 2)in scientific journals 3)by exchanging information over the internet |
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