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प्रश्न
What is Genetic variations?
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उत्तर
Genetic variation is the difference in DNA sequences between individuals within a population. Variation occurs in germ cells, i.e., sperm and egg, and also in somatic (all other) cells. Only variation that arises in germ cells can be inherited from one individual to another and so affect population dynamics, and ultimately evolution. Mutations and recombination are major sources of variation.
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संबंधित प्रश्न
Define the term gene flow.
State the following:
Theory of recapitulation
What is Isolation?
Identify the INCORRECT statement.
______ changes the genes rearrangement (order or sequence) resulting in variation.
Genetic drift is more significant in ______
Chromosomal aberration causing no loss or gain of gene complement of the chromosome is called ____________.
Write short note on Gene pool.
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 |
What is Genetic recombination?
