Solution :
Anabaena is a cyanobacteria which lack a true nucleus because of absence of nuclear membrane. Notes : Anabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants, such as the mosquito fern.
Releted MCQ Question on Botany >> Biological Classification
Releted Question 1
Pick up the wrong statement
A.
Protista have photosynthetic and heterotrophic modes of nutrition
In the five-kingdom system of classification, which single kingdom out of the following can include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?