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2.Human Reproduction
normal
The sperm penetrates the ovum mainly
A
Mechanically
B
Chemically
C
Electrostatically
D
Thermally
(AIEEE-2004)
Solution
(b) The penetration of the sperm through the zona radiata is also supported by enzymetic substance called hyaluronidase (mucopolysacchrside hyaluronic acid) that is chemical.
Standard 12
Biology