Question
Explain the factors affecting the Hardy- Weinberg equilibrium.
✓
Answer
→ When any part of the population (members) migrates to another part of population, the gene frequency of the original and the new population changes. New genes / alternative factors are added to the new population and removed from the old population.
(1) Genetic Drift: If such migratory changes are acquired by chance, it is called genetic drift.
(2) Mutation:
→ Pre-existing beneficial mutations result in species formation.
(3) Genetic Recombination :
→ Generation meanwhile happening recombination is effective.
(4) Gene Flow (Gene migration):
→ If gene migration occurs frequently, it is called genetic flow.
(5) Natural selection: It is 3 types.
→ Stabilizing selection: Here, more individuals acquire mean character value and variation is reduced.
→ Directional selection: Individuals of one extreme (value other than mean character value) are more favoured.
→ Disruptive selection: Individuals of both extremes (peripheral character value at both ends of the distribution curve) are more favoured.
(1) Genetic Drift: If such migratory changes are acquired by chance, it is called genetic drift.
(2) Mutation:
→ Pre-existing beneficial mutations result in species formation.
(3) Genetic Recombination :
→ Generation meanwhile happening recombination is effective.
(4) Gene Flow (Gene migration):
→ If gene migration occurs frequently, it is called genetic flow.
(5) Natural selection: It is 3 types.
→ Stabilizing selection: Here, more individuals acquire mean character value and variation is reduced.
→ Directional selection: Individuals of one extreme (value other than mean character value) are more favoured.
→ Disruptive selection: Individuals of both extremes (peripheral character value at both ends of the distribution curve) are more favoured.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Enumerate the goals of human genome project.
Construct an age pyramid which reflects a stable growth status of human population.
Write a short note on viability of pollen- grains.
Define the following and give one example of each (a) False fruit, (b) True fruit, (c) Parthenocarpic fruit, (d) Polyembryony.
Write the mechanism of action of HIV infection?
If you squeeze a seed of orange you might observe many embryos of different sizes? How is it possible? Explain.
Given below are the events that are observed in an artificial hybridization programme. Arrange them in the correct sequential order in which they are followed in the hybridisation programme.
(a) Re-bagging (b) Selection of parents (c) Bagging (d) Dusting the pollen on stigma (e) Emasculation (f) Collection of pollen from male parent.
(a) Re-bagging (b) Selection of parents (c) Bagging (d) Dusting the pollen on stigma (e) Emasculation (f) Collection of pollen from male parent.
When and where was the World Summit on sustainable development held? How many countries signed the convention? What was the objective?
Write about the amendment passed by the Indian Parliament regarding patent issues.
Which are the three cells found in a pollen grain when it is shed at the three celled stage?