Dinoflagellates have
577 Dinoflagellates have
Biology
Biological Classification
NEET
Moderate
2026
Question
Options
A) Two flagella which lies longitudinally
B) Only one flagellum in the transverse groove between the cell plates
C) Only one flagellum in the longitudinal groove between the cell plates
D) One flagella lies longitudinally and the other transversely in a furrow between the wall plates
Show Correct Answer
d
View Detailed Solution
In dinoflagellates the two flagella are different (heterodont) one transverse flagellum and other longitudinal flagellum. The longitudinal flagellum is narrow smooth directed posteriorly and lies in the sulcus. The transverse flagellum is ribbon like and lies in cingulum or annulus. The two types of flagella beats in different directions