Life evolved in the sea. It stayed there for the majority of the history of earth. The first replicating molecules were most likely RNA. RNA is a nucleic acid similar to DNA. In laboratory studies it has been shown that some RNA sequences have catalytic capabilities. Most importantly, certain RNA sequences act as polymerases — enzymes that form strands of [...]
Here is a list of some essays on disease causing bacteria in humans. Also learn about about its prevention and control. Essay # 1. Diplococcus: The pneumococcus (Diplococcus pneumoniae) is the causative agent of lobar pneumonia. The disease is nearly always caused by this organism, although other bacteria are occasionally involved. Diplococcus Pneumonia: Cells oval or spherical, measuring 0.5 to [...]
Here is an essay on ‘Bacteria and Human Disease’ for class 11 and 12. Find paragraphs, long and short essays on ‘Bacteria and Human Disease’ especially written for school and college students. Essay on Bacteria and Human Disease Essay # 1. Brucella Abortus: Cells short ellipsoidal rods, occurring singly, in pairs, and occasionally in chains, measuring 0.3 to 0.4 μ [...]