Which of the following is not a feature of the plasmids?
Independent replication
Circular structure
Transferable
Single – stranded
Related Questions
Pigment present in cyanobacteria is
r- phycocyanin
r-phycocerythrin
c-phycocyanin
Anthocyanin
Analyse the following statements regarding cyanobacteria and identify the correct option given below
I. The cyanobacteria are unicellular, colonial or filamentous, marine or terrestrial algae
II. The colonies of cyanobacteria are generally surrounded by gelatinous sheath
Codes
Only I
Only II
I and II
None of these
In cyanobacteria, which of the following is present?
Chlorophyll-c
Chlorophyll-b
Chlorophyll-a
Chloropyll-c
Pigments present in BGA include?
Chlorophyll b and carotenoids
Chlorophyll a, carotenoids, and phycobilins
Chlorophyll a and phycobilins only
Chlorophyll b, carotenoids, and xanthophylls
Which of the following is a nitrogen fixing organism?
BGA
Rhizobium
Both (1)and (2)
Agaricus
Harmogonia are reproductive structures of
Spirogyra
Ulothrix
Anabaena
Yeast
Which of the following is photoautotrophic bacteria?
Nostoc and Anabaena
Clostridium
Salmonelia
Escherichia coli
Harmogonia are reproductive structures of
Spirogyra
Ulothrix
Anabaena
Yeast
Which one of the following forms of the bloom is present in polluted water?
Blue-green algae
Red algae
Blue algae
Brown algae
A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water fernAzolla is
Tolypothrix
Chlorella
Nostoc
Anabaena
