Biology Practice MCQ Page 31

Multiple Choice questions for Biology in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 2452   Lederberg and Tatum demonstrated conjugation in the bacteria
  1. 1944
  2. 1945
  3. 1946
  4. 1947
Question: 2453   Transduction in bacteria was discovered in 1952 by
  1. Tatum
  2. Griffith
  3. Zinder
  4. Mcleod
Question: 2454   The bacteria having slim capsules are
  1. Virulent
  2. None-virulent
  3. Parasite
  4. Saprophyte
Question: 2456   Oswald Avery and his colleagues confirmed in 1944 that transforming substance in bacteria is
  1. DNA
  2. RNA
  3. Muramic Acid
  4. Protein
Question: 2457   Genophore is the name of
  1. DNA of bacteria
  2. DNA of Eukaryotes
  3. the gense of Nurospora
  4. gense of Drosophila
Question: 2458   Important plant diseases like fire-bliht and crownall are caused by
  1. Viruses
  2. Bacteria
  3. Fungi
  4. Protozoans
Question: 2460   Most of the antibiotics used today are produced by various specific of bacteria belong to the group called
  1. Streptomyces
  2. Freezing
  3. Dehydration
  4. Sterilization
Question: 2467   Streptomycin is produced by
  1. Stretomyces griseus
  2. s.fradiae
  3. S.venezuelae
  4. S. rimosus.
Question: 2468   A cell wall material present only in blue green algae and bacteria is
  1. cellulose
  2. glycogen
  3. mumramic acid
  4. pectin
Question: 2472   Which type of bacteria get their food from dead organic matter?
  1. Parasitic
  2. Autotrophic
  3. Saprophytic
  4. None of the above
Question: 2473   Which of the following is less resistance to antibiotics?
  1. Escherechia coli
  2. Gram positive bacteria
  3. Gram negative Bacteria
  4. None of the above
Question: 2474   It is the process of genetic recombination between two organisms through a cytoplasmic bridge between them.
  1. Transduction
  2. Transformation
  3. Conjugation
  4. None of the above

Answers to the questions of Biology on this page

Following list gives the correct choice for the answer of the Biology mcqs.
2452 . C       2453 . C       2454 . A       2456 . A       2457 . A       2458 . B       2460 . C       2467 . A       2468 . C       2472 . C       2473 . C       2474 . C      

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