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Get Answers to all your Questions
Which of the following statements is correct?
Option: 1
Fusion of two cells is called Karyogamy
Option: 2
Fusion of protoplasm between two motile on non -motile gametes is called plasogamy
Option: 3
Organism that depend on the living plants are called saprophytes.
Option: 4
Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells.
Answers (1)
Plasmogamy, the fusion of two protoplasts (the contents of the two cells), brings together two compatible haploid nuclei. At this point, two nuclear types are present in the same cell, but the nuclei have not yet fused.
Some of the organisms like Nostoc and Anabaena can fix atmospheric nitrogen in specialized cells called Heterocyst.
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