Which of the following statements is correct for dinoflagel…

Biology Biological Classification Skill Builder Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Which of the following statements is correct for dinoflagellates flagella?

A single flagellum lies in the transverse groove between the cell plates.

A single flagellum lies in the longitudinal groove between the cell plates.

Two flagella, one lies longitudinally and the other transversely in a furrow between the wall plates.

Flagella are absent.

Text Solution

Verified by Experts

The correct answer is:

Dinoflagellates typically have two flagella:

• One flagellum lies in the longitudinal groove (called the sulcus)

• The other lies in the transverse groove (called the cingulum)

This arrangement helps in their characteristic whirling movement.

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