A fern prothallus is bisexual. If fertilization takes place between their gametes then it is known as
Cross fertilization
Self fertilization
Isogamous
Viviparous
A
Cross fertilization
B
Isogamous
C
Viviparous
D
Self fertilization
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Solution
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Self-fertilization is fusion of male and female gametes (sex cells) produced by the same individual. Self-fertilization occurs in bisexual organisms. But in ferns self fertilisation is prevented by various mechanisms.
Hence the correct option is B.
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