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An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN
? Related: Neet 2019
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An apple showing monosporic type of embryosac development assumed to d...
Chromosome count in an apple with monosporic type of embryo sac development
Megaspore Mother Cell (MMC):
- The MMC undergoes meiosis to produce four haploid megaspores
- Chromosome count in MMC is 2n (diploid) as it is a somatic cell
- Therefore, the MMC in this apple will have 2n = 34 chromosomes
Functional Megaspores:
- Out of the four megaspores produced by MMC, only one survives and develops into the functional megaspore
- The functional megaspore undergoes mitotic divisions to form the embryo sac
- Chromosome count in the functional megaspore is n (haploid) as it is produced by meiosis
- Therefore, the functional megaspore in this apple will have n = 17 chromosomes
Egg Cells, Synergids, and Antipodals:
- The embryo sac in the apple will have three antipodal cells, two synergids, and one egg cell
- Chromosome count in the egg cell, synergids, and antipodal cells is n (haploid) as they are formed by mitotic divisions of the functional megaspore
- Therefore, the egg cell, synergids, and antipodal cells in this apple will have n = 17 chromosomes each
Zygote:
- After fertilization, the egg cell and sperm cell fuse to form the zygote
- Chromosome count in the zygote is 2n (diploid) as it is formed by fusion of two haploid gametes
- Therefore, the zygote in this apple will have 2n = 34 chromosomes
Polar Nuclei (PEN):
- Before fertilization, the two polar nuclei in the embryo sac fuse to form the PEN
- Chromosome count in the PEN is 2n (diploid) as it is formed by fusion of two haploid nuclei
- Therefore, the PEN in this apple will have 2n = 34 chromosomes
Megaspore Mother Cell (MMC):
- The MMC undergoes meiosis to produce four haploid megaspores
- Chromosome count in MMC is 2n (diploid) as it is a somatic cell
- Therefore, the MMC in this apple will have 2n = 34 chromosomes
Functional Megaspores:
- Out of the four megaspores produced by MMC, only one survives and develops into the functional megaspore
- The functional megaspore undergoes mitotic divisions to form the embryo sac
- Chromosome count in the functional megaspore is n (haploid) as it is produced by meiosis
- Therefore, the functional megaspore in this apple will have n = 17 chromosomes
Egg Cells, Synergids, and Antipodals:
- The embryo sac in the apple will have three antipodal cells, two synergids, and one egg cell
- Chromosome count in the egg cell, synergids, and antipodal cells is n (haploid) as they are formed by mitotic divisions of the functional megaspore
- Therefore, the egg cell, synergids, and antipodal cells in this apple will have n = 17 chromosomes each
Zygote:
- After fertilization, the egg cell and sperm cell fuse to form the zygote
- Chromosome count in the zygote is 2n (diploid) as it is formed by fusion of two haploid gametes
- Therefore, the zygote in this apple will have 2n = 34 chromosomes
Polar Nuclei (PEN):
- Before fertilization, the two polar nuclei in the embryo sac fuse to form the PEN
- Chromosome count in the PEN is 2n (diploid) as it is formed by fusion of two haploid nuclei
- Therefore, the PEN in this apple will have 2n = 34 chromosomes
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An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019?
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An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019?.
An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An apple showing monosporic type of embryosac development assumed to develop a fruit with 12 seeds . find out the number of chromosomes present in megaspore mother cell functional megaspores egg cells , synergies, antipodals, Zygote and PEN Related: Neet 2019?.
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