Class 10 Exam > Class 10 Questions > Which of the following is incorrect about sel...
Start Learning for Free
Which of the following is incorrect about self pollination?
- a)It helps to preserve the parental characters
- b)repeated self pollination leads to loss of vigour and vitality of species
- c)New varieties cannot be obtained by self pollination
- d)the genetic drifts of the breed can be removed
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Which of the following is incorrect about self pollination?a)It helps ...
Genetic drift cannot be removed by self pollination.
Most Upvoted Answer
Which of the following is incorrect about self pollination?a)It helps ...
Incorrect statement: The genetic drifts of the breed can be removed
Explanation:
Self-pollination is the process in which the pollen from the anther of a flower is transferred to the stigma of the same flower or another flower of the same plant. It occurs in many plant species and has both advantages and disadvantages.
Advantages of self-pollination:
1. Preservation of parental characters: Self-pollination helps in preserving the parental characters of a plant. Since the pollen comes from the same plant, the offspring will have similar traits to the parent plant.
2. Consistency: Self-pollination ensures consistency in the characteristics of the species. It is particularly useful for maintaining desirable traits in crop plants, such as disease resistance or high yield.
3. Time and energy-saving: Self-pollination eliminates the need for external agents like wind or pollinators for pollination, saving time and energy for the plant.
Disadvantages of self-pollination:
1. Loss of vigour and vitality: Repeated self-pollination can lead to a loss of vigour and vitality in the species. This is because self-pollination reduces genetic diversity, and inbreeding depression can occur, resulting in weakened offspring.
2. Reduced adaptability: Self-pollination restricts the introduction of new genetic variations into the population. As a result, the species may have reduced adaptability to changing environmental conditions.
3. Limited genetic variation: Self-pollination does not allow for the exchange of genetic material between different individuals. It restricts the creation of new combinations of traits and limits the potential for the development of new varieties.
Why option D is incorrect:
The statement in option D is incorrect because self-pollination does not remove genetic drifts of the breed. Genetic drift refers to the random changes in the frequency of alleles in a population over time. Self-pollination can actually increase the impact of genetic drift because it limits the gene flow between individuals and reduces genetic diversity. As a result, it may accelerate the occurrence of genetic drift rather than removing it.
In conclusion, self-pollination has advantages such as preserving parental characters and consistency, but it also has disadvantages such as loss of vigour and limited genetic variation. However, it does not remove genetic drifts of the breed.
Explanation:
Self-pollination is the process in which the pollen from the anther of a flower is transferred to the stigma of the same flower or another flower of the same plant. It occurs in many plant species and has both advantages and disadvantages.
Advantages of self-pollination:
1. Preservation of parental characters: Self-pollination helps in preserving the parental characters of a plant. Since the pollen comes from the same plant, the offspring will have similar traits to the parent plant.
2. Consistency: Self-pollination ensures consistency in the characteristics of the species. It is particularly useful for maintaining desirable traits in crop plants, such as disease resistance or high yield.
3. Time and energy-saving: Self-pollination eliminates the need for external agents like wind or pollinators for pollination, saving time and energy for the plant.
Disadvantages of self-pollination:
1. Loss of vigour and vitality: Repeated self-pollination can lead to a loss of vigour and vitality in the species. This is because self-pollination reduces genetic diversity, and inbreeding depression can occur, resulting in weakened offspring.
2. Reduced adaptability: Self-pollination restricts the introduction of new genetic variations into the population. As a result, the species may have reduced adaptability to changing environmental conditions.
3. Limited genetic variation: Self-pollination does not allow for the exchange of genetic material between different individuals. It restricts the creation of new combinations of traits and limits the potential for the development of new varieties.
Why option D is incorrect:
The statement in option D is incorrect because self-pollination does not remove genetic drifts of the breed. Genetic drift refers to the random changes in the frequency of alleles in a population over time. Self-pollination can actually increase the impact of genetic drift because it limits the gene flow between individuals and reduces genetic diversity. As a result, it may accelerate the occurrence of genetic drift rather than removing it.
In conclusion, self-pollination has advantages such as preserving parental characters and consistency, but it also has disadvantages such as loss of vigour and limited genetic variation. However, it does not remove genetic drifts of the breed.
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
Explore Courses for Class 10 exam
|
|
Similar Class 10 Doubts
Top Courses for Class 10View all
Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer?
Question Description
Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer?.
Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following is incorrect about self pollination?a)It helps to preserve the parental charactersb)repeated self pollination leads to loss of vigour and vitality of speciesc)New varieties cannot be obtained by self pollinationd)the genetic drifts of the breed can be removedCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup