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In male Ascaris-
- a)Posterior end is curved and a pair of penial setae or spicules project from the genital aperture
- b)Posterior end is curved without any spicules
- c)Posterior end is almost straight
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
In male Ascaris-a)Posterior end is curved and a pair ofpenial setae or...
Male
Ascaris
are 2- 4 mm in diameter and 15- 31 cm long. The male's posterior end is curved ventrally and has a bluntly pointed tail. Females are 3- 6 mm wide and 20- 49 cm long. The vulva is located in the anterior end and accounts for about one- third of its body length.
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In male Ascaris-a)Posterior end is curved and a pair ofpenial setae or...
Male Ascaris
The correct answer is option 'A': Posterior end is curved and a pair of penial setae or spicules project from the genital aperture. Let's understand why this is the correct answer.
Anatomy of Male Ascaris
Ascaris is a genus of parasitic roundworms that infect the intestines of humans and animals. The male and female Ascaris worms have distinct anatomical features that differentiate them.
Posterior End
The posterior end of the male Ascaris worm is curved. This curvature allows for easier insertion into the female worm during copulation. It is important for the male worm to have a curved posterior end to facilitate successful mating.
Genital Aperture
The genital aperture is the opening through which the male Ascaris worm releases its reproductive structures. In the case of the male worm, this opening is located on the ventral side of the posterior end.
Penial Setae or Spicules
Penial setae or spicules are specialized structures that project from the genital aperture of the male Ascaris worm. These structures play a crucial role in copulation by aiding in the insertion of the male reproductive organs into the female worm.
Function of Penial Setae or Spicules
During copulation, the male Ascaris worm uses its penial setae or spicules to anchor itself to the female worm. These structures help in maintaining a secure position during mating. They also assist in the transfer of sperm from the male to the female worm.
Conclusion
In male Ascaris, the posterior end is curved, and a pair of penial setae or spicules project from the genital aperture. These anatomical features are essential for successful mating and reproduction. Therefore, option 'A' is the correct answer.
The correct answer is option 'A': Posterior end is curved and a pair of penial setae or spicules project from the genital aperture. Let's understand why this is the correct answer.
Anatomy of Male Ascaris
Ascaris is a genus of parasitic roundworms that infect the intestines of humans and animals. The male and female Ascaris worms have distinct anatomical features that differentiate them.
Posterior End
The posterior end of the male Ascaris worm is curved. This curvature allows for easier insertion into the female worm during copulation. It is important for the male worm to have a curved posterior end to facilitate successful mating.
Genital Aperture
The genital aperture is the opening through which the male Ascaris worm releases its reproductive structures. In the case of the male worm, this opening is located on the ventral side of the posterior end.
Penial Setae or Spicules
Penial setae or spicules are specialized structures that project from the genital aperture of the male Ascaris worm. These structures play a crucial role in copulation by aiding in the insertion of the male reproductive organs into the female worm.
Function of Penial Setae or Spicules
During copulation, the male Ascaris worm uses its penial setae or spicules to anchor itself to the female worm. These structures help in maintaining a secure position during mating. They also assist in the transfer of sperm from the male to the female worm.
Conclusion
In male Ascaris, the posterior end is curved, and a pair of penial setae or spicules project from the genital aperture. These anatomical features are essential for successful mating and reproduction. Therefore, option 'A' is the correct answer.
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In male Ascaris-a)Posterior end is curved and a pair ofpenial setae or spicules project from thegenital apertureb)Posterior endis curvedwithout anyspiculesc)Posterior end is almost straightd)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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In male Ascaris-a)Posterior end is curved and a pair ofpenial setae or spicules project from thegenital apertureb)Posterior endis curvedwithout anyspiculesc)Posterior end is almost straightd)None of the aboveCorrect answer is option 'A'. 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 male Ascaris-a)Posterior end is curved and a pair ofpenial setae or spicules project from thegenital apertureb)Posterior endis curvedwithout anyspiculesc)Posterior end is almost straightd)None of the aboveCorrect answer is option 'A'. 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 male Ascaris-a)Posterior end is curved and a pair ofpenial setae or spicules project from thegenital apertureb)Posterior endis curvedwithout anyspiculesc)Posterior end is almost straightd)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
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