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प्रश्न
Short answer question.
What is disruptive selection?
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उत्तर
Disruptive natural selection is a selection in which more number of individuals acquire peripheral character value at both ends of the distribution curve.
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संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
"We cannot pass on to our progeny the experiences and qualifications earned during our life time". Justify the statement giving reason and examples.
What are the different ways in which individuals with a particular trait may increase in a population?
| A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced. |
- State whether the change in colour of beetle is a process of evolution or not.
- Can the new colour of green beetle be passed on to its next generations?
- What will be the advantage (if any) of the green colour to the beetle?
- State whether the production of green colour involved a change in genetic material or not.
Give one example each of characters that are inherited and the ones that are acquired in humans. Mention the difference between the inherited and the acquired characters.
Name any three types of postmating isolating mechanisms.
The Sewall Wright effect is also referred to as ______
____________ results in variation in gene frequencies within population by chance rather than by natural selection.
Theory of inheritance of acquired character was given by:
Variations during mutations of meiotic recombinations are ______.
