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Question
Zygospore of Spirogyra at the time of meiosis is divided into 4 nuclei. How many nuclei degenerate out of these four?
Zygospore of Spirogyra at the time of meiosis is divided into 4 nuclei. How many nuclei degenerate out of these four?
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Solution
The correct option is C Three
The united protoplasmic mass of two gametes is called zygote or zygospore. Prior to germination, the diploid zygospore nucleus undergoes meosis and forms four nuclei. Three ofthe four nuclei degenerate since they are smaller in size, The last cell is bigger and grows using the reserve food substances.
The united protoplasmic mass of two gametes is called zygote or zygospore. Prior to germination, the diploid zygospore nucleus undergoes meosis and forms four nuclei. Three ofthe four nuclei degenerate since they are smaller in size, The last cell is bigger and grows using the reserve food substances.
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