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Q.
Sahiwal cow in (a)______ was developed by (b)______
Principles of Inheritance and Variation
Solution:
• 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.