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3 Cards in this Set
What did Mendel accomplish?
-operational definition of the gene
-Genes are passed from parents to offspring
-the P generation is homozygous:
makes only one type of gamete
-the F1 generation is heterozygous:
makes two types of gametes
-the F2 generation reflects the probability of combination of gametes
What did Morgan accomplish?
-genes are actually present on chromosomes
-more than one gene was observed, they didn’t always stay together
-chiasma observed by the cytologists could be places where genes can cross over
What did Sturtevant and Bridges accomplish?
-genes are arrayed linearly along chromosomes