The Development of Understanding of Genetics & Evolution (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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Practise the cards
14 cards from this deck
Scientist who proposed theory of evolution
Scientist who proposed theory of evolution
Charles Darwin
Ship Darwin travelled on
Ship Darwin travelled on
HMS Beagle
Year 'On the Origin of Species' was published
Year 'On the Origin of Species' was published
1859
Cause of variation within species
Cause of variation within species
Mutations in DNA
Process where best-suited organisms survive & reproduce
Process where best-suited organisms survive & reproduce
Natural selection
Definition of alleles
Definition of alleles
Versions of a gene
Religious reason for resistance to Darwin's theory
Religious reason for resistance to Darwin's theory
Challenged belief God created all species as they are
Evidence problem Darwin faced
Evidence problem Darwin faced
Limited evidence of how species changed over time
What was unknown in Darwin's era about inheritance
What was unknown in Darwin's era about inheritance
Concepts of genetic inheritance and variation
Lamarck's hypothesis about trait inheritance
Lamarck's hypothesis about trait inheritance
Acquired traits during life could be passed to offspring
Lamarck's giraffe example
Lamarck's giraffe example
Neck lengthens by stretching, passed to offspring
Why Lamarck's theory was disproven
Why Lamarck's theory was disproven
Only genetic info in sex cells passed on, not acquired traits
How genetics supported Darwin's theory
How genetics supported Darwin's theory
Showed how beneficial traits from mutations can be inherited
How fossil record supported Darwin's theory
How fossil record supported Darwin's theory
Showed gradual changes in species over time