The Understanding of Genetics (OCR GCSE Biology A (Gateway Science Suite)): Flashcards

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The Understanding of Genetics
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What Mendel studied in Vienna

Mathematics and natural history

Organism Mendel used for breeding experiments

Pea plants

Types of peas Mendel experimented with

Smooth, wrinkled, green, and yellow peas

Mendel's term for what we now call genes

Hereditary units

Number of hereditary units inherited from each parent

One

Two types of hereditary units

Dominant and recessive

How hereditary units are passed on

Intact, not blended

Why Mendel's work wasn't recognised in his lifetime

Genes and chromosomes were not yet understood

What scientists observed in the late 19th century

Chromosomes during cell division

Location of genes

On chromosomes

Year DNA structure was determined

1953

Scientists who discovered DNA structure

James Watson and Francis Crick

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