Which of the following are the characteristics of phaeophyceae ?
(i) possess chlorophyll a,c carotenoids and xanthophylls.
(ii) Food stored is in the from of laminarin and mannitol.
(iii) Asexual reproduction by biflagellate zoospores that have two equal apically attached flagella.
(iv) Cell wall has cellulose and algin.
(v) sexual reproduction is oogamous only.
(vi) Gamestes have two laterally attached flagella.
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Answer:
Correct option is
None of these
Vegetative reproduction takes place by fragmentation. First propagules are developed and then after detachment new plants are formed.
Asexual reproduction takes place by biflagellate pear-shaped zoospores.
Sexual reproduction ranges from isogamy to oogamy through anisogamy. Gametes al bears 2 laterally attached flagella.
In most of the members, fertilization is external.
So, the correct answer is " none of these".
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