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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
When resheathing needles, simple precautions to prevent injuries are to: 1. use only one hand to scoop the cap 2. hold the sheath with a hemostat (suggested but will require
Explain the Occurrence of vitamin B 2 Vitamin B 2 (riboflavin) occurs in nature almost exclusively in a combined form i.e. esterified with phosphoric acid as riboflavin-5'-ph
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All the water used in the home that goes into the drain or into sewage collection system is called waste water. Domestic sewage is the waste water from kitchens, bathrooms etc. It
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S-Adenosyl methionine serve as a donor of methyl sets in numerous biological reactions instance for in the formation of creatine phosphate and in the synthesis of nuc
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Describe Basic steps in genetic engineering
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