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BIOLOGY

JAMB 2007 - Question 44

Biology 2007 JAMB Past Questions - Question 44: The process illustrated is

Use the diagram to answer question that follows

The process illustrated is

A: gametogenesis

B: speculation

C: sexual reproduction in Spirogyra

D: sexual reproduction in Rhizopus

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Correct Answer

Explanation

DSexual reproduction in spirogyra also results in the formation of zygospore. This occurs when two spirogyra filaments lie side by side and a conjugation tube is developed between them. The protoplasm, in the adjacent cells round off and become gametes. The gamete from one conjugant moves .into the other through the conjugation tube. They fuse to form azygospore. Sporulation also called multiple fission occurs in Amoeba aftercarryn repeated binary fission, againg or dryness of the aquatic habitat. Gametogenesis is the formation of gar or sex cells.