| Front | Describe the contribution Gregor Mendel made to the study of genetics: |
|---|---|
| Back | 19th century -He investigated sexual reproduction by carrying out breeding experiments on pea plants.-He found: characteristics are determined by "units" that are inherited. 20th century -Scientists realised chromosomes and "units" behaved in similar ways. -"units" are what we call genes, were located on chromsomes. |
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