NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology Diversity in Living World-Five Kingdom Classification Revision (Page 5 of 46)

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Reproduction

Bacteria reproduce by two methods

  1. Asexual reproduction
  2. Genetic recombination

1. Asexual reproduction

(i) Binary fission -

  • This is the most common method of bacterial reproduction. Binary fission takes place by amitosis. (Amitosis is characteristic of prokaryotes. Mitosis and Meiosis never occur in prokaryotes. )
  • First of all DNA replication takes place in bacterial cell. Under favourable conditions the bacterial cells divide into two cells due to formation of transverse septum in

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Economic Importance of Bacteria - Harmful Activities

  1. Disease in Human beings

Table showing the Disease in Human beings

The Disease in Human beings

Disease

Bacterium

Tuberculosis (T. B. )

Mycobacterium tuberculosis

Leprosy

Mycobacterium leprae

Diphtheria

Corynebacterium diphtheriae

Tetanus

Clostridium tetani

Typhoid

Salmonella typhi

Plague

- Pasteurella pestis or Yersinia pestis

Pneumonia

Diplococcus pneumoniae or Pneumococcus pneumoniae

Jaundice

Leptospira ictero

Pertussis

Bordetella pertussis

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