Sieve tubes are devoid of nuclei,but still they are living. how – InterviewSolution

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1.	Sieve tubes are devoid of nuclei,but still they are living. how
Answer» ube cells are CLOSELY related to the companion cells VIA the plasmodesmata. At the start, they possess a nucleus, however, at the prime stage they lose the ribosomes, nucleus, and vacuoles and get segregated for the conduction of FOOD. Hence, even the MATURE sieve tubes are enucleated, they remain LIVING.

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