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प्रश्न
Very short answer question.
If variation occurs in a population by chance alone and not by natural selection and brings a change in frequencies of an allele. What is it called?
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उत्तर
If the variation in a population occurs by chance alone and not by natural selection and brings about a change in frequencies of an allele, it is called genetic drift.
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संबंधित प्रश्न
Give any ‘two’ factors responsible for genetic variation.
Match the following:
| Column- I | Column- II |
| 1. August Weismann | a. Mutation theory |
| 2. Hugo de vries | b. Germplasm theory |
| 3. Charl Darwin | c. Theory of acquired characters |
| 4. Lamark | d. Theory of natural selection |
Define the term ‘Mendelian population’.
The total genetic information encoded in sum total of genes in a Mendelian population is called ______.
Which theory provides explanation for both natural selection as well as mutation?
After the industrial revolution in Great Britain in 1845 which of the following occurred?
The modem synthetic theory of evolution does NOT include ____________.
The movement of genes into or out of a population is known as ______.
Domestic wheat, which has 42 chromosomes, is probably hexaploid (6n), whereas the haploid number in the ancestral ones was 7. Find out the right reason as to how are such plants produced?
Which event is represented by the above diagram, related to chromosomal aberrations?
