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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
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PROVIDE a specific example for epithelial and connective tissues, how the arrangement of cells helps with tissue functioning?
This method makes use of a common, but peculiar, group of DNA sequences known as minisatellites. High levels of variation in the numbers of these repeated units are used in "DNA fi
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