1. Tardigrade
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  3. Biology
  4. Read the following statements regarding archaebacteria. I. Their cell wall lacks peptidoglycan. II. They contain membrane bound organelles. III. These have distinct ribosomal RNA sequence. IV. Lipid in cell membrane of archaebacteria have different structure than those in all other organisms. Choose the incorrect option.

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Q. Read the following statements regarding archaebacteria.
I. Their cell wall lacks peptidoglycan.
II. They contain membrane bound organelles.
III. These have distinct ribosomal RNA sequence.
IV. Lipid in cell membrane of archaebacteria have different structure than those in all other organisms.
Choose the incorrect option.

AIIMSAIIMS 2016

Solution:

The term archaebacteria refers to the ancient origin of this group of bacteria, which seems to have diverged very early from the eubacteria. They do not contain membrane bound organelles. Their cell wall lacks peptidoglycan which is an important component of cell wall of eubacteria. Archaebacteria have distinct ribosomal RNA sequence. Lipid present in cell membrane of archaebacteria have different structures than those in all other organisms.