Question

Identify the correct statement:
A) Cyanobacteria are the highest evolved algae
B) Dominant pigment of blue green algae is haemoerythrin
C) Sexual reproduction in cyanobacteria is isogamous
D) No spindle formation occurs in nostoc cell at the time of division​

Answer 1

Answer:

Morphology and division pattern. Cyanobacteria were traditionally described as algae and referred to as 'Cyanophyta' or 'Blue green algae'.

Answer 2

The correct statement is D) No spindle formation occurs in the nostoc cell at the time of division.

• The dominant pigment of blue-green algae is yellow-green while haemoerythrin is a pigment of red algae.
• Sexual reproduction in cyanobacteria can be isogamous, oogamous and anisogamous.
• Spindle formation is part of cell division and is formed by centrosome but centrosome is absent in prokaryotes and nostoc.
• Spindle formation occurs in eukaryotic cells.

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