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Հարց 111

Which of these are examples of selective breeding? Select all that apply.

  1. Wheat plants bred over generations for a higher grain yieldՃիշտ պատասխան
  2. Cattle bred over generations to produce more milkՃիշտ պատասխան
  3. Wild rabbits with better camouflage surviving more often on stony ground
  4. Dogs bred over generations for a gentle temperamentՃիշտ պատասխան
  5. Wild flowers spreading across a field after a wet summer

Բացատրություն

The wheat, the cattle and the dogs all involve people deciding which individuals become parents in order to build up a characteristic those people want. In the rabbit case the surroundings do the choosing and no breeder is involved, which makes it natural selection instead.

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Հարց 111: Which of these are examples of selective breeding? Select… · Genetics Basics · Questena