Question:

Which statement is correct about centre of origin of plant

Updated On: Mar 26, 2024
  • more diversity in improved variety
  • frequency of dominant gene is more
  • climatic condition more favourable
  • none of the above.
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The Correct Option is A

Solution and Explanation

The two criteria on basis of which Nikolai Ivanwitch Vavilov proposed different centre oforigin were (a) occurrence of maximum variation in the crop and (b) occurrence of wild relatives.
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Concepts Used:

Evolution

Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.