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While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due to
- a)Segregation and crossing over only
- b)Independent assortment and segregation only
- c)Independent assortment and crossing over only
- d)Crossing over, independent assortment and segregation
Correct answer is option 'D'. Can you explain this answer?
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While in mitosis, the daughter cells resemble each other and also the ...
The correct answer is d) Crossing over, independent assortment and segregation. During meiosis, chromosomes undergo two important processes: crossing over and independent assortment. Crossing over occurs when two homologous chromosomes exchange genetic material, while independent assortment is when chromosomes align at random during metaphase I. In addition, during meiosis, chromosomes also undergo segregation, which is when homologous chromosomes separate and form two haploid cells.
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While in mitosis, the daughter cells resemble each other and also the ...
Mitosis:
- In mitosis, the parent cell undergoes a single division to produce two identical daughter cells.
- The daughter cells have the same number and type of chromosomes as the parent cell, and they also resemble each other.
- This means that both the genetic constitution and physical characteristics of the daughter cells are similar to each other and to the parent cell.
Meiosis:
- Meiosis is a type of cell division that occurs in sexually reproducing organisms to produce gametes (sperm and egg cells).
- It involves two divisions, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
- The process of meiosis introduces genetic variation due to two main mechanisms: crossing over and independent assortment.
Crossing Over:
- Crossing over occurs during prophase I of meiosis.
- It involves the exchange of genetic material between homologous chromosomes.
- This exchange results in the mixing of genetic information from the maternal and paternal chromosomes, leading to the formation of new combinations of alleles.
- As a result, the daughter cells produced during meiosis differ from the parent cell and from each other in terms of their genetic constitution.
Independent Assortment:
- Independent assortment occurs during metaphase I of meiosis.
- It involves the random alignment of homologous pairs of chromosomes at the equator of the cell.
- The orientation of each pair is independent of the orientation of other pairs.
- This random alignment leads to the separation of different combinations of chromosomes into different daughter cells during anaphase I.
- As a result, the daughter cells produced during meiosis differ from each other in terms of the combinations of chromosomes they receive, further contributing to genetic variation.
Combining Factors:
- Therefore, the correct answer is option 'D' because crossing over, independent assortment, and segregation (separation of homologous chromosomes during anaphase I and separation of sister chromatids during anaphase II) all contribute to the qualitative differences in genetic constitution among the daughter cells produced during meiosis.
- These mechanisms ensure that each gamete produced is unique, with a different combination of alleles, allowing for genetic diversity in sexually reproducing organisms.
- In mitosis, the parent cell undergoes a single division to produce two identical daughter cells.
- The daughter cells have the same number and type of chromosomes as the parent cell, and they also resemble each other.
- This means that both the genetic constitution and physical characteristics of the daughter cells are similar to each other and to the parent cell.
Meiosis:
- Meiosis is a type of cell division that occurs in sexually reproducing organisms to produce gametes (sperm and egg cells).
- It involves two divisions, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
- The process of meiosis introduces genetic variation due to two main mechanisms: crossing over and independent assortment.
Crossing Over:
- Crossing over occurs during prophase I of meiosis.
- It involves the exchange of genetic material between homologous chromosomes.
- This exchange results in the mixing of genetic information from the maternal and paternal chromosomes, leading to the formation of new combinations of alleles.
- As a result, the daughter cells produced during meiosis differ from the parent cell and from each other in terms of their genetic constitution.
Independent Assortment:
- Independent assortment occurs during metaphase I of meiosis.
- It involves the random alignment of homologous pairs of chromosomes at the equator of the cell.
- The orientation of each pair is independent of the orientation of other pairs.
- This random alignment leads to the separation of different combinations of chromosomes into different daughter cells during anaphase I.
- As a result, the daughter cells produced during meiosis differ from each other in terms of the combinations of chromosomes they receive, further contributing to genetic variation.
Combining Factors:
- Therefore, the correct answer is option 'D' because crossing over, independent assortment, and segregation (separation of homologous chromosomes during anaphase I and separation of sister chromatids during anaphase II) all contribute to the qualitative differences in genetic constitution among the daughter cells produced during meiosis.
- These mechanisms ensure that each gamete produced is unique, with a different combination of alleles, allowing for genetic diversity in sexually reproducing organisms.
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While in mitosis, the daughter cells resemble each other and also the ...
Metaphase is characterized by the alignment of chromosomes at the cell's equator, also known as the metaphase plate. This alignment ensures that each daughter cell will receive an equal and identical set of chromosomes when the chromosomes are pulled apart in the subsequent anaphase.
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While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer?
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While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer?.
While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer?.
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While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of While in mitosis, the daughter cells resemble each other and also the parent cell; in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due toa)Segregation and crossing over onlyb)Independent assortment and segregation onlyc)Independent assortment and crossing over onlyd)Crossing over, independent assortment and segregationCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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