Class 11 Exam > Class 11 Questions > What is correct ?a)Nucleosomal organisation p...
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What is correct ?
- a)Nucleosomal organisation provides a
chromatin fibre about 10 nm in thickness
and chromatin fibres further condensed to
produce a solenoid of 30 nm diameter. - b)The solenoid structure further coils to
produce a chromatin fibre of 200 nm and
then a chromatid of 700 nm diameter - c)All the folded loops of chromatin are held to gether
- d)All of the above.
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
What is correct ?a)Nucleosomal organisation provides achromatin fibre ...
Explanation:
The correct answer is D, as all the statements mentioned in options A, B, and C are correct.
Here is a detailed explanation of each statement:
A:
- Nucleosomal organization provides a chromatin fiber about 10 nm in thickness.
- Chromatin fibers are further condensed to produce a solenoid of 30 nm diameter.
B:
- The solenoid structure further coils to produce a chromatin fiber of 200 nm.
- The chromatin fiber then condenses to form a chromatid with a diameter of 700 nm.
C:
- All the folded loops of chromatin are held together.
Therefore, option D, which includes all the statements, is the correct answer.
To summarize:
- Nucleosomal organization forms chromatin fibers of about 10 nm thickness.
- Chromatin fibers condense to produce a solenoid structure with a diameter of 30 nm.
- The solenoid structure further coils to form a chromatin fiber of 200 nm.
- The chromatin fiber condenses to produce a chromatid with a diameter of 700 nm.
- All the folded loops of chromatin are held together.
Remember, when answering multiple-choice questions, carefully read each option and evaluate if it is correct or incorrect.
The correct answer is D, as all the statements mentioned in options A, B, and C are correct.
Here is a detailed explanation of each statement:
A:
- Nucleosomal organization provides a chromatin fiber about 10 nm in thickness.
- Chromatin fibers are further condensed to produce a solenoid of 30 nm diameter.
B:
- The solenoid structure further coils to produce a chromatin fiber of 200 nm.
- The chromatin fiber then condenses to form a chromatid with a diameter of 700 nm.
C:
- All the folded loops of chromatin are held together.
Therefore, option D, which includes all the statements, is the correct answer.
To summarize:
- Nucleosomal organization forms chromatin fibers of about 10 nm thickness.
- Chromatin fibers condense to produce a solenoid structure with a diameter of 30 nm.
- The solenoid structure further coils to form a chromatin fiber of 200 nm.
- The chromatin fiber condenses to produce a chromatid with a diameter of 700 nm.
- All the folded loops of chromatin are held together.
Remember, when answering multiple-choice questions, carefully read each option and evaluate if it is correct or incorrect.
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Community Answer
What is correct ?a)Nucleosomal organisation provides achromatin fibre ...
Nucleosomal organization:
The correct statement is option D, which means that all of the given statements are correct.
a) Nucleosomal organization provides a chromatin fiber about 10 nm in thickness and chromatin fibers further condensed to produce a solenoid of 30 nm diameter.
- Nucleosomal organization refers to the packaging of DNA in eukaryotic cells. It involves the wrapping of DNA around histone proteins to form nucleosomes.
- Nucleosomes consist of DNA wrapped around a core of eight histone proteins, forming a bead-like structure.
- This organization results in a chromatin fiber about 10 nm in thickness. The nucleosomes act as repeating units along the chromatin fiber, providing stability and compactness.
b) The solenoid structure further coils to produce a chromatin fiber of 200 nm and then a chromatid of 700 nm diameter.
- The solenoid structure refers to the further coiling of the chromatin fiber.
- The chromatin fiber, with a diameter of about 10 nm, undergoes additional coiling to form a solenoid structure with a diameter of approximately 30 nm.
- This solenoid structure further coils and condenses to produce a chromatin fiber of 200 nm in diameter.
- The chromatin fiber continues to condense and fold, eventually forming a chromatid with a diameter of about 700 nm.
- A chromatid is one half of a duplicated chromosome, which is formed during DNA replication in preparation for cell division.
c) All the folded loops of chromatin are held together.
- The folded loops of chromatin are held together by various proteins and protein complexes.
- These proteins help in maintaining the higher-order organization of chromatin and ensure the proper functioning of the genome.
- The loops of chromatin play a role in gene regulation, as they bring distant regions of the DNA into close proximity, allowing for interactions between regulatory elements and genes.
Therefore, the correct answer is option D, as all of the given statements are correct and collectively describe the organization of chromatin from nucleosomes to folded loops.
The correct statement is option D, which means that all of the given statements are correct.
a) Nucleosomal organization provides a chromatin fiber about 10 nm in thickness and chromatin fibers further condensed to produce a solenoid of 30 nm diameter.
- Nucleosomal organization refers to the packaging of DNA in eukaryotic cells. It involves the wrapping of DNA around histone proteins to form nucleosomes.
- Nucleosomes consist of DNA wrapped around a core of eight histone proteins, forming a bead-like structure.
- This organization results in a chromatin fiber about 10 nm in thickness. The nucleosomes act as repeating units along the chromatin fiber, providing stability and compactness.
b) The solenoid structure further coils to produce a chromatin fiber of 200 nm and then a chromatid of 700 nm diameter.
- The solenoid structure refers to the further coiling of the chromatin fiber.
- The chromatin fiber, with a diameter of about 10 nm, undergoes additional coiling to form a solenoid structure with a diameter of approximately 30 nm.
- This solenoid structure further coils and condenses to produce a chromatin fiber of 200 nm in diameter.
- The chromatin fiber continues to condense and fold, eventually forming a chromatid with a diameter of about 700 nm.
- A chromatid is one half of a duplicated chromosome, which is formed during DNA replication in preparation for cell division.
c) All the folded loops of chromatin are held together.
- The folded loops of chromatin are held together by various proteins and protein complexes.
- These proteins help in maintaining the higher-order organization of chromatin and ensure the proper functioning of the genome.
- The loops of chromatin play a role in gene regulation, as they bring distant regions of the DNA into close proximity, allowing for interactions between regulatory elements and genes.
Therefore, the correct answer is option D, as all of the given statements are correct and collectively describe the organization of chromatin from nucleosomes to folded loops.
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What is correct ?a)Nucleosomal organisation provides achromatin fibre about 10 nm in thicknessand chromatin fibres further condensed toproduce a solenoid of 30 nm diameter.b)The solenoid structure further coils toproduce a chromatin fibre of 200 nm andthen a chromatid of 700 nm diameterc)All the folded loops of chromatin are held to getherd)All of the above.Correct answer is option 'D'. Can you explain this answer?
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What is correct ?a)Nucleosomal organisation provides achromatin fibre about 10 nm in thicknessand chromatin fibres further condensed toproduce a solenoid of 30 nm diameter.b)The solenoid structure further coils toproduce a chromatin fibre of 200 nm andthen a chromatid of 700 nm diameterc)All the folded loops of chromatin are held to getherd)All of the above.Correct answer is option 'D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about What is correct ?a)Nucleosomal organisation provides achromatin fibre about 10 nm in thicknessand chromatin fibres further condensed toproduce a solenoid of 30 nm diameter.b)The solenoid structure further coils toproduce a chromatin fibre of 200 nm andthen a chromatid of 700 nm diameterc)All the folded loops of chromatin are held to getherd)All of the above.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is correct ?a)Nucleosomal organisation provides achromatin fibre about 10 nm in thicknessand chromatin fibres further condensed toproduce a solenoid of 30 nm diameter.b)The solenoid structure further coils toproduce a chromatin fibre of 200 nm andthen a chromatid of 700 nm diameterc)All the folded loops of chromatin are held to getherd)All of the above.Correct answer is option 'D'. Can you explain this answer?.
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ample number of questions to practice What is correct ?a)Nucleosomal organisation provides achromatin fibre about 10 nm in thicknessand chromatin fibres further condensed toproduce a solenoid of 30 nm diameter.b)The solenoid structure further coils toproduce a chromatin fibre of 200 nm andthen a chromatid of 700 nm diameterc)All the folded loops of chromatin are held to getherd)All of the above.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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