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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
What are the main human blood group systems? In humans the major blood group systems are the ABO system, the Rh system and the MN system.
DIVISION PHASE OR MITOSIS (M- PHASE) Cell division was first observed by Naegeli 1842 in plant cells ,but thoroughly described by Eduard strasburger 1875. Fleming 1879 desc
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Based on the simplified two-gene model for eye colour, explain using genotypes how two blue-eyed parents could produce a brown-eyed child. In what ways is genomic imprinting sim
Q. Symptoms of mitral regurgitation? Symptoms depend upon underlying etiology of mitral regurgitation. Patients with mild mitral regurgitation and most of those with even sever
Congenital disorders Poor fertilizing quality of semen could be due to impaired spermatogenesis. When such a condition is due to genetic congenital causes the treatment is not
General characters of mollusca
Define the working of pH Meter? The pH of a solution, we know, measures the degree of acidity or alkalinity relative to the ionization of water sample. A pH meter is a sophisti
Define Standard Titration - Estimation of Vitamin C in A Solution ? Pipet 5 ml of standard ascorbic acid solution into a 100 ml conical flask. Fill the burette with the dye solu
what is your name
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