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Which one of the following statements about human sperm is correct?
1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation
2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
3. Acrosome serves as a sensory structure leading the sperm towards the ovum
4. Acrosome serves no particular function.
The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
Blastulation explain
Describe in brief about retina The retina is a highly complex layer of nervous tissue. The photoreceptors are rods and cones for scotopic and photopic vision respectively. The
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Anterior Leaflet Procedure: Repair is more difficult and less successful. Previously, a triangular excision of the anterior leaflet used to be done for prolapse and rupture of
classifcation of protozoans
Explain the Nonpolar Molecular Attractions in basic chemistry? Nonpolar Molecular Attractions : Van der Waals forces and hydrophobic interactions are weak (not as strong
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