Plant KingdomHard
Question
The product of conjugation in Spirogyra or fertilization of Chlamydomonas is
Options
A.zygospore
B.zoospre
C.oospsre
D.carpospore
Solution
Zygospore (zygote) is the fusion product of two gametes. It infact, represents the resting stage formed after withdrawl of flagella and formetion of a thick wall around the freshly formed zygote. Zygospore is spheical with thick, smooth or stellate wall and contains fats and reserve food materials other than starch. It can resist unfavourable conditions,
In Chlamydomonas, zygospore is the resultant of isogamy, anisogamy or oogamy. In Spirogyra sexual reproduction occurs through conjugation, which may be scalariform or lateral. The resulting zygote secretes a thick wall and called zygospore (having 3 layers thick wall, diploid nucleus and abundant food reserves in the form of oil and starch).
In Chlamydomonas, zygospore is the resultant of isogamy, anisogamy or oogamy. In Spirogyra sexual reproduction occurs through conjugation, which may be scalariform or lateral. The resulting zygote secretes a thick wall and called zygospore (having 3 layers thick wall, diploid nucleus and abundant food reserves in the form of oil and starch).
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