What is the Primary Difference Between a Bacteroid a Bacterial

Question

What is the primary difference between a bacteroid a bacterial cell?
A) There are genetic differences that can be detected using 16S rRNA gene sequencing.
B) They are biochemically very different from bacterial cells.
C) Their cell morphology is different from bacterial morphology.
D) They have genetic differences that can be detected using DNA sequencing.

Accepted Answer

Bacteroid morphology is different from typical bacterial morphology due to its enlarged periplasmic space and lack of a peptidoglycan cell wall.

Answer: D 
 Bacteroids have genetic differences that can be detected through sequencing their DNA, such as the presence of specific genes involved in nitrogen fixation that are not present in other bacterial taxa.