3. Principles of Inheritance Flashcards Preview

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Flashcards in 3. Principles of Inheritance Deck (2)
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1
Q

Who is often regarded as the father of genetics? What did he do?

A
  • Gregor Mendel
  • crossed varieties of pea plants that had different characteristics and, from his results, he deduced the principles on which inheritance is based
2
Q

Was Gregor Mendel the first to attempt to deduce the principles of inheritance? If not, why was he successful?

A
  • no
  • he obtained numerical rather than descriptive results
  • and used large numbers of pea plants (it is important in science to have enough replicates to ensure reliability)

e.g. in ‘seed=smooth/wrinkled’ example, he counted 7,324 seeds in F2 generation:
- smooth: 5,474
- wrinkled: 1,850
with such large numbers, he could be very confident that the basic ration was 3:1

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