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Q.
Which of the following is a living cell which lacks nucleus on maturity?
NTA AbhyasNTA Abhyas 2020Anatomy of Flowering Plants
Solution:
Seive tube element possesses a peripheral cytoplasm and a large vacuole but lacks a nucleus. The functions of sieve tubes are controlled by nucleus of companion cells. Mature vessel elements are dead cells which lacks both nucleus and cytoplasm on maturity.