Biological Classification And System Of Classification Question 83
Question: The most primitive in the following are
[BHU 2005]
Options:
A) Cyanobacteria
B) Bryophytes
C) Gymnosperms
D) Monocots
Show Answer
Answer:
Correct Answer: A
Solution:
Cyanobacteria are prokaryotic organisms who lack a membrane-bound nucleus and other membrane-bound organelles like mitochondria, chloroplasts.
They also lack a true nucleus.
They are thought to be primitive organisms because they possess an incipient nucleus and show division similar to amitosis.
Amitosis is a method of cell division in which spindle fibres are not formed.
BETA
