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Question
Consider the following and choose correct features w.r.t. bacillariophycean members.
(a) Girdle
(b) Cnidoblast
(c) Sewage pollution indicator
(d) gametic meiosis
(e) Auxospores
(f) Diplontic life cycle
Consider the following and choose correct features w.r.t. bacillariophycean members.
(a) Girdle
(b) Cnidoblast
(c) Sewage pollution indicator
(d) gametic meiosis
(e) Auxospores
(f) Diplontic life cycle
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Solution
The correct option is A a, d, e & f
Members of Bacillariophyceae are commonly known as diatoms. The theca in diatom is made up of siliceous bands also called girdle bands. In zygotic meiosis, meiotic division occurs in zygotes resulting in the formation of haploid individuals. Axospores are structures formed during sexual reproduction in diatoms. In diatoms vegetative cells are diploid, and meiosis gives rise to gametes. This kind of life cycle is seen in diatoms.Thus the correct answer is option A.
Members of Bacillariophyceae are commonly known as diatoms. The theca in diatom is made up of siliceous bands also called girdle bands. In zygotic meiosis, meiotic division occurs in zygotes resulting in the formation of haploid individuals. Axospores are structures formed during sexual reproduction in diatoms. In diatoms vegetative cells are diploid, and meiosis gives rise to gametes. This kind of life cycle is seen in diatoms.
Thus the correct answer is option A.
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