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प्रश्न
Define Population.
परिभाषा
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उत्तर
According to the Modern Synthesis Theory (the Neo-Darwinian theory), a population is a group of interbreeding individuals of the same species with a shared gene pool within a specific geographical area. This gene pool contains all the genetic variations in the population, and through mechanisms like natural selection, mutation, genetic drift, and gene flow, evolutionary changes occur over generations.
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संबंधित प्रश्न
Give any ‘two’ factors responsible for genetic variation.
State the following:
Theory of recapitulation
Short answer question.
Enlist the different factors that are responsible for changing gene frequency.
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 |
Which of the following is TRUE for zygote mortality?
Identify the INCORRECT statement.
The modem synthetic theory of evolution does NOT include ____________.
Reproductive isolation does not occur due to ______.
Industrial melanism is one of the best example for ______.
