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प्रश्न
Define the term:
Genetic drift
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उत्तर
Any random fluctuation (alteration) in allele frequency, occurring in the natural population by pure chance, is called genetic drift.
संबंधित प्रश्न
Long answer question.
Explain the different factors responsible for genetic variations.
What is Isolation?
Which of the following is TRUE for zygote mortality?
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Zygote mortality | a. | Hybrid develops to maturity but becomes sterile |
| ii. | Hybrid sterility | b. | Egg is fertilized but zygote dies |
| iii. | Gamete mortality | c. | Union of two gametes does not occur in the iven time |
After the industrial revolution in Great Britain in 1845 which of the following occurred?
Sewall Wright effect is ______
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?
What is Genetic recombination?
If the members of two different populations do not interbreed due to difference in the structure of reproductive organs, then it is called ______ isolation.
