Which algal division is characterized by the presence of a 'peculiar' type of nuclear division and the absence of flagellated stages in its life cycle?
Chlorophyta
Phaeophyta
Rhodophyta
Xanthophyta
Related Questions
Isogametes are not produced by
Ulothrix
Volvox
Spirogyra
Rhizopus
Which of the following statements are TRUE regarding the characteristics of Phaeophyceae?
(i) They reproduce asexually by biflagellate zoospores.
(ii) Their main photosynthetic pigments are chlorophyll a, c, carotenoids, and xanthophylls.
(iii) Their cell walls are composed of cellulose and algin.
(iv) They store food as mannitol, laminarin, and starch.
(i) and (ii) only
(i), (ii) and (iii)
(ii), (iii) and (iv)
(i), (ii), (iii) and (iv)
Oogamous means
Fusion between female and male gametes. Both are similar in size
Fusion between one large female gamete and a smaller non-motile male gamete
Fusion between one large female gamete and a smaller motile male gamete
Fusion between one smaller female gamete and a large motile male gamete
Swarm Spores are produced by
Penicillium
Rhizopus
Spirogyra
Chlamydomonas
Isogamy is found in
Spirogyra
Chlamydomonas
Both (a) and (b)
Fucus
Fusion of two dissimilar gametes is known as?
Allogamy
Anisogamy
Autogamy
Dichogamy
In green algae vegetative reproduction takes place by
Fragmentation
Different types of spores
Both (a) and (b)
Conidia
Isogamous meanI. both gametes are similar in size and non-motileII. both gametes are dissimilar in size and motileIII. both gametes are similar in size and motileIV. both gametes are dissimilar in size and non-motileWhich of the statement(s) given above is/are correct?
I only
II only
I and III
II and IV
Archegonia is female sex organs in all except
Pinus
Adiantum
Polysiphonia
Funaria
Which process is responsible for the production of gametes in humans?
Mitosis
Meiosis
Binary Fission
Budding
