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In the prothallus of a vascular cryptogam, the antherozoids and eggs mature a different times. As a result [2007]
  • a)
    there is high degree of sterility
  • b)
    one can conclude that the plant is apomictic
  • c)
    self-fertilization is prevented
  • d)
    there is no change in success rate of fertilization 
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In the prothallus of a vascular cryptogam, the antherozoids and eggs m...
In the prothallus of a vascular cryptogams the antherozoids and eggs mature at different times which result in failurity of self-fertilization.
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Most Upvoted Answer
In the prothallus of a vascular cryptogam, the antherozoids and eggs m...
Explanation:
The prothallus is the gametophyte stage of vascular cryptogams (ferns, horsetails, and clubmosses). During this stage, the antherozoids (sperm cells) and eggs mature at different times. This has an important consequence: it prevents self-fertilization.

Self-fertilization is the fertilization of an egg by a sperm from the same individual. This can lead to a decrease in genetic diversity and an increase in the expression of deleterious recessive alleles. By preventing self-fertilization, the prothallus ensures that the offspring will have a higher genetic diversity and a better chance of survival.

Therefore, option C is the correct answer.
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In the prothallus of a vascular cryptogam, the antherozoids and eggs mature a different times. As a result [2007]a)there is high degree of sterilityb)one can conclude that the plant is apomicticc)self-fertilization is preventedd)there is no change in success rate of fertilizationCorrect answer is option 'C'. Can you explain this answer?
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In the prothallus of a vascular cryptogam, the antherozoids and eggs mature a different times. As a result [2007]a)there is high degree of sterilityb)one can conclude that the plant is apomicticc)self-fertilization is preventedd)there is no change in success rate of fertilizationCorrect answer is option 'C'. 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 In the prothallus of a vascular cryptogam, the antherozoids and eggs mature a different times. As a result [2007]a)there is high degree of sterilityb)one can conclude that the plant is apomicticc)self-fertilization is preventedd)there is no change in success rate of fertilizationCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the prothallus of a vascular cryptogam, the antherozoids and eggs mature a different times. As a result [2007]a)there is high degree of sterilityb)one can conclude that the plant is apomicticc)self-fertilization is preventedd)there is no change in success rate of fertilizationCorrect answer is option 'C'. Can you explain this answer?.
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