Of the following organisms,which has a unique developmental life cycle including a replicative form,the reticulate body (RB),and an extracellular,metabolically inert,infective form,the elementary body (EB)?
A)Rickettsia
B)Chlamydia
C)Ehrlichia
D)Coxiella

Question

Quizplus · Accepted Answer

The chlamydial organisms have a unique developmental life cycle,with an intracellular growth,or replicative form,the RB,and an extracellular,metabolically inert,infective form,the EB.Structurally,the chlamydial EB closely resembles a gram-negative bacillus;however,its cell wall lacks a peptidoglycan layer.

Of the Following Organisms,which Has a Unique Developmental Life Cycle