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प्रश्न
Define the term ‘Mendelian population’.
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उत्तर
The populations that occur in small groups of ‘interbreeding populations’ are referred to as the ‘Mendelian population’.
संबंधित प्रश्न
Give any ‘two’ factors responsible for genetic variation.
Transfer of gene between the population that differ genetically from one another is called _____.
(A) Gene mutation
(B) Gene flow
(C) Genetic drift
(D) Genetic recombination
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?
Long answer question.
Explain the different factors responsible for genetic variations.
All are post zygotic barriers, EXCEPT
Which theory provides explanation for both natural selection as well as mutation?
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 |
____________ brings about evolutionary changes by favouring differential reproduction of genes.
Industrial melanism is one of the best example for ______.
