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Which of the following is not correctly matched?
- a)Equal holoblastic-Marsupials cleavage
- b)Unequal holoblastic-Amphibians cleavage
- c)Meroblastic cleavage-Humans
- d)Radial cleavage-Synapta Paracentrotums
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is not correctly matched?a)Equal holoblastic-Ma...
Meroblastic cleavage is found in the egg of fish, reptiles and four species of mammals.
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Which of the following is not correctly matched?a)Equal holoblastic-Ma...
Introduction:
The question asks which of the following is not correctly matched. It provides four options related to different types of cleavage in various organisms.
Explanation:
Equal holoblastic-Marsupials cleavage:
Holoblastic cleavage refers to the type of cleavage where the entire zygote divides completely during each cell division. In marsupials, the cleavage is indeed equal and holoblastic. This means that the zygote divides completely and equally during each cell division, resulting in the production of blastomeres of similar size. Therefore, the matching of equal holoblastic cleavage with marsupials is correct.
Unequal holoblastic-Amphibians cleavage:
Amphibians exhibit unequal holoblastic cleavage. This means that the zygote divides completely but unequally during each cell division, resulting in the production of blastomeres of different sizes. Therefore, the matching of unequal holoblastic cleavage with amphibians is correct.
Meroblastic cleavage-Humans:
Meroblastic cleavage refers to the type of cleavage where only a part of the zygote divides, while the rest remains undivided. Humans, however, undergo holoblastic cleavage. The entire zygote divides completely during each cell division. Therefore, the matching of meroblastic cleavage with humans is incorrect.
Radial cleavage-Synapta Paracentrotums:
Radial cleavage refers to the type of cleavage where the cleavage planes are either parallel or perpendicular to the animal-vegetal axis, resulting in blastomeres arranged in a radial pattern. Synapta paracentrotums, which is a species of sea cucumber, exhibits radial cleavage. Therefore, the matching of radial cleavage with synapta paracentrotums is correct.
Conclusion:
The correct answer is option C, which states that meroblastic cleavage is matched with humans. Humans undergo holoblastic cleavage, not meroblastic cleavage.
The question asks which of the following is not correctly matched. It provides four options related to different types of cleavage in various organisms.
Explanation:
Equal holoblastic-Marsupials cleavage:
Holoblastic cleavage refers to the type of cleavage where the entire zygote divides completely during each cell division. In marsupials, the cleavage is indeed equal and holoblastic. This means that the zygote divides completely and equally during each cell division, resulting in the production of blastomeres of similar size. Therefore, the matching of equal holoblastic cleavage with marsupials is correct.
Unequal holoblastic-Amphibians cleavage:
Amphibians exhibit unequal holoblastic cleavage. This means that the zygote divides completely but unequally during each cell division, resulting in the production of blastomeres of different sizes. Therefore, the matching of unequal holoblastic cleavage with amphibians is correct.
Meroblastic cleavage-Humans:
Meroblastic cleavage refers to the type of cleavage where only a part of the zygote divides, while the rest remains undivided. Humans, however, undergo holoblastic cleavage. The entire zygote divides completely during each cell division. Therefore, the matching of meroblastic cleavage with humans is incorrect.
Radial cleavage-Synapta Paracentrotums:
Radial cleavage refers to the type of cleavage where the cleavage planes are either parallel or perpendicular to the animal-vegetal axis, resulting in blastomeres arranged in a radial pattern. Synapta paracentrotums, which is a species of sea cucumber, exhibits radial cleavage. Therefore, the matching of radial cleavage with synapta paracentrotums is correct.
Conclusion:
The correct answer is option C, which states that meroblastic cleavage is matched with humans. Humans undergo holoblastic cleavage, not meroblastic cleavage.
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Which of the following is not correctly matched?a)Equal holoblastic-Marsupials cleavageb)Unequal holoblastic-Amphibians cleavagec)Meroblastic cleavage-Humansd)Radial cleavage-Synapta ParacentrotumsCorrect answer is option 'C'. Can you explain this answer?
Question Description
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