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(21.04.2006)
| (1) | A gene is a Mendelian factor A gene is a real particle carrying hereditary information. It can control a trait in offsprings and can be regarded as the factor as stated in Mendel's Laws. |
| (2) | A gene is a recon T.H.Morgan proposed that a gene is a segment of chromosome that can be a unit for making exchanges. |
| (3) | A gene is a muton A gene is a unit that can give a mutation. |
| (4) | A gene is a cistron A gene is a segment of chromosome that can control and produce a peptide molecule. |
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