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Mendel's Experiment - Coggle Diagram
Mendel's Experiment
Theory of Inheritance
Gregor Mendel
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Over 8 years, bred pea plants to follow inheritance. He chose pea plants because:
- they matured quickly
- Sex organs enclosed inside plant
- Usually self-pollinating
- Able to control fertilization
- Variety of traits to observe
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Monohybrid
Every experiment started with true breeding for a trait, but that exhibited a different form of the trait.
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Results
First filial generation of male yellow-pea-producing and female green-pea-producing, one parent seed colour trait seemed to disappear.
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Law of Segregation
There are two hereditary factors. Today, they are called "alleles".
Pairs of homologous chromosomes carry the same genes, but may carry different forms of those genes ("alleles").
One allele is dominant, the other is recessive.
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Dominant allele: represented by first letter of allele's description, and in upper case
Recessive allele: represented by first letter of allele's description, and in lower case