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Classification

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Classification


Learning objectives – to learn how to interpret genetic diagrams and learn

how genes are passed on and how they present themselves  Genetic

diagrams can be used to show the several possibilities that may occur within

the genes of the offspring.

 

The initial pioneer of genetic experiments was a scientist called Gregor 

Mendel who performed experiments on pea plants in the 19th century. He

investigated the height of pea plants. The first experiment included tall pea

plants and dwarfed pea plants. He crossed the two types and observed the

offspring. He found that all the offspring were tall pea plants.

 

This is illustrated in the genetic diagram below. A capital T highlights the tall

pea plant and a lower case t highlights a dwarfed pea plant.

 

 

aa1

 

He then crossed the offspring and found that the results were slightly different.

 

aa1


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