NEET Exam > NEET Questions > Disjunction refers toa)The separation of homo...
Start Learning for Free
Disjunction refers to
- a)The separation of homologous chromosomes at anaphase - I
- b)The type of chromosomal aberration in which there is loss of a part of a chromosome
- c)Incompatibility in fungi and other thallophytes
- d)Modification of gene action by a nonallelic gene
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Disjunction refers toa)The separation of homologous chromosomes at ana...
Understanding Disjunction
Disjunction is a critical process in cell division, particularly during meiosis. It specifically refers to the separation of homologous chromosomes, which is essential for the proper distribution of genetic material to daughter cells.
What Happens During Disjunction?
- Meiosis Overview: Meiosis consists of two consecutive cell divisions, meiosis I and meiosis II. During meiosis I, homologous chromosomes pair up and undergo recombination, leading to genetic diversity.
- Anaphase I Role: Disjunction occurs during anaphase I, where homologous chromosomes are pulled apart to opposite poles of the cell. This ensures that each daughter cell receives one chromosome from each homologous pair.
Importance of Disjunction
- Genetic Variation: Disjunction contributes to genetic variation in gametes, which is vital for evolution and adaptation in populations.
- Chromosomal Stability: Proper disjunction prevents aneuploidy, a condition where cells have an abnormal number of chromosomes, which can lead to developmental disorders and diseases.
Clarification of Other Options
- Option B: Refers to chromosomal aberrations, specifically deletion, which is unrelated to disjunction.
- Option C: Discusses incompatibility in fungi, not relevant to chromosome behavior.
- Option D: Involves gene action modification, distinct from the process of disjunction.
Conclusion
Disjunction is integral to meiosis, ensuring the correct separation of homologous chromosomes during anaphase I, which is crucial for maintaining genetic integrity and diversity. Understanding this concept is essential for grasping the fundamentals of genetics and cell biology, particularly for NEET aspirants.
Disjunction is a critical process in cell division, particularly during meiosis. It specifically refers to the separation of homologous chromosomes, which is essential for the proper distribution of genetic material to daughter cells.
What Happens During Disjunction?
- Meiosis Overview: Meiosis consists of two consecutive cell divisions, meiosis I and meiosis II. During meiosis I, homologous chromosomes pair up and undergo recombination, leading to genetic diversity.
- Anaphase I Role: Disjunction occurs during anaphase I, where homologous chromosomes are pulled apart to opposite poles of the cell. This ensures that each daughter cell receives one chromosome from each homologous pair.
Importance of Disjunction
- Genetic Variation: Disjunction contributes to genetic variation in gametes, which is vital for evolution and adaptation in populations.
- Chromosomal Stability: Proper disjunction prevents aneuploidy, a condition where cells have an abnormal number of chromosomes, which can lead to developmental disorders and diseases.
Clarification of Other Options
- Option B: Refers to chromosomal aberrations, specifically deletion, which is unrelated to disjunction.
- Option C: Discusses incompatibility in fungi, not relevant to chromosome behavior.
- Option D: Involves gene action modification, distinct from the process of disjunction.
Conclusion
Disjunction is integral to meiosis, ensuring the correct separation of homologous chromosomes during anaphase I, which is crucial for maintaining genetic integrity and diversity. Understanding this concept is essential for grasping the fundamentals of genetics and cell biology, particularly for NEET aspirants.
Free Test
FREE
| Start Free Test |
Community Answer
Disjunction refers toa)The separation of homologous chromosomes at ana...
The homologous chromosomes break their connections and separate out during anaphase I of meiosis I. This process of separation is named as disjunction.
|
Explore Courses for NEET exam
|
|
Top Courses for NEETView all
Question Description
Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer?.
Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Disjunction refers toa)The separation of homologous chromosomes at anaphase - Ib)The type of chromosomal aberration in which there is loss of a part of a chromosomec)Incompatibility in fungi and other thallophytesd)Modification of gene action by a nonallelic geneCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily