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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
Start with a cell with chromosome number 2n=6, and having two acrocentric pairs and one metacentric pair of chromosomes. Draw the cell in metaphase I. Indicate one pair of sister c
Q. Why does the urinary volume increase when alcoholic beverages are ingested? Alcohol inhibits the ADH (antidiuretic hormone) secretion by the hypophysis and Low ADH reduces t
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What key idea, contained in Malthus's essay on populations, helped Darwin formulates his theory of natural selection?
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