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प्रश्न
What are the different ways in which individuals with a particular trait may increase in a population?
उत्तर
ndividuals with a particular trait may increase in a population as a result of the following:
- Natural selection: When that trait offers some survival advantage.
- Genetic drift: When some genes governing that trait become common in a population.
- When that trait gets acquired during the individual’s lifetime.
APPEARS IN
संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
What is meant by dominant genes and recessive genes? Give one example of each.
Fill in the following blank with suitable word :
The human forelimb and bat's forelimb are an example of .......... organs whereas an insect's wing and a bat's wing are an example of ........... organs.
According to scientists, aves have evolved from :
(a) mammals
(b) amphibians
(c) reptiles
(d) arthropods
A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced.
(a) State whether the change in colour of beetle is a process of evolution or not.
(b) Can the new colour of green beetle be passed on to its next generations?
(c) What will be the advantage (if any) of the green colour to the beetle?
(d) State whether the production of green colour involved a change in genetic material or not.
Complete the statement by choosing correct options from below .
Evolution means -- -- -- --.
Very short answer question.
Define the Gene frequency
What is a connecting link?
The first fossil of human form, discovered was ______.
Define the following term:
Evolution
