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प्रश्न
Define the term ‘Mendelian population’.
उत्तर
The populations that occur in small groups of ‘interbreeding populations’ are referred to as the ‘Mendelian population’.
संबंधित 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?
Long answer question.
By taking industrial melanism as one example. Explain the concept of natural selection.
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Ecological isolation | a. | Sexually mature at different times of the year |
| ii. | Ethological isolation | b. | Specific mating behaviours |
| iii. | Mechanical isolation | c. | Difference in structure of mating organs |
| iv. | Seasonal isolation | d. | Same geographic region but separate habitat |
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 |
Genetic drift is more significant in ______
Reproductive isolation does not occur due to ______.
____________ brings about evolutionary changes by favouring differential reproduction of genes.
The movement of genes into or out of a population is known as ______.
Which animal was very conspicuously visible on the tree trunks after the industrial revolution (1845) in Great Britain?
Which of the following is a pre-mating mechanism of isolation?
