What will you look for to identify the sex of the following? [2011]a)F...
A male shark possesses a pair of claspers which are inserted into a female shark’s cloaca (an opening on the underside of the body) at the time of mating. Claspers are located on the inner edge of the pelvic fins near the male’s cloaca. The function of claspers is to introduce sperm into a female shark’s body for the purpose of fertilizing her eggs. Female sharks do not have claspers.
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What will you look for to identify the sex of the following? [2011]a)F...
Option D) Male shark-claspers are borne on pelvic fins...whereas...a)Male Ascaris has sharply curved posterior end..& it's not the female Ascaris ...b)Male frog has copulatory pad on 1st digit of the forelimbs ...& it's not the hindlimbs....c)Male coackroach has Analcerci .....& it's absent in female cockroach. ...
What will you look for to identify the sex of the following? [2011]a)F...
Identifying Male Sharks
To determine the sex of a shark, the presence of claspers is a key characteristic. Claspers are specialized reproductive structures that males possess, which are used to transfer sperm to the female during mating.
Understanding Claspers
- Claspers are elongated, rod-like structures located on the pelvic fins of male sharks.
- They are derived from modified pelvic fins and play a crucial role in the reproductive process.
- During mating, males insert the claspers into the female’s cloaca to deliver sperm.
Comparative Anatomy
- Male sharks are generally larger and more robust than females, but the most definitive feature is the presence of claspers.
- In contrast, female sharks do not have claspers and have a more streamlined body adapted for carrying and nurturing embryos.
Importance in Reproduction
- Claspers enable internal fertilization, which is essential for the reproductive success of many shark species.
- This adaptation allows for a greater chance of offspring survival in various marine environments.
Conclusion
The correct identification of male sharks through the presence of claspers is crucial for understanding their reproductive strategies. This feature distinguishes them from females and is vital for studies related to shark biology and conservation.
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