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NEETZoologyPrinciples of Inheritance and Variation

When did humans know that one of the causes of variation was hidden in sexual reproduction?

Options

  1. AAs early as 1500-1000 B.C.
  2. BAs early as 5000-4000 B.C.
  3. CAs early as 8000-1000 B.C.
  4. DAs early as 12000-11000 B.C.

Correct answer

C. As early as 8000-1000 B.C.

Step-by-step solution

Explanation : Humans knew from as early as 8000-1000 B.C. that one of the causes of variation was hidden in sexual reproduction. They exploited the variations that were naturally present in the wild populations of plants and animals to selectively breed and select for organisms that possessed desirable characters. For example, through artificial selection and domestication from ancestral wild cows, we have well-known Indian breeds, e.g., Sahiwal cows in Punjab. We must, however, recognise that though our ancestors

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