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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
Write down the three main concepts of the modern synthetic theory.
Which theory provides explanation for both natural selection as well as mutation?
Which of the following is TRUE for zygote mortality?
Which is TRUE for industrial melanism?
Black colored form became dominant over the light colored form in England during industrial revolution after 1845. This can be owed to ______.
Identify the method of reproductive isolation, when members of a population attain sexual maturity at different times preventing interbreeding.
Chromosomal aberration causing no loss or gain of gene complement of the chromosome is called ____________.
Fertilization between opposite mating gametes leads to ______.
The movement of genes into or out of a population is known as ______.
Match the following
| Column A | Column B | ||
| (i) | Dryopithecus | (a) | Java and Peking |
| (ii) | Ramapithecus | (b) | Toung in South Africa |
| (iii) | Australopithecus | (c) | Lake Victoria of Africa |
| (iv) | Homo erectus | (d) | Shivalik hills in India |
