661. Which of the following contains genes for drug and disease resistance in bacteria?
✅ B. Plasmid
Option A: Necleotide Option B: Plasmid Option C: Mesosome Option D: Ribosome Correct Answer : Plasmid Read more
Biology MCQs – Page 34
662. Which of the following bacteria do not have flagella commonly__________?
✅ A. Cocci
Option A: Cocci Option B: Bacilli Option C: Streptobacilli Option D: Vibrio Correct Answer : Cocci Read more
663. A bacterium with tuft of flagella at both poles is called_____________?
✅ D. Amphitrichous
Option A: Lophotrichus Option B: Monotrichous Option C: Peritrichous Option D: Amphitrichous Correct Answer : Amphitrichous Read more
664. Rapid growth at exponential ration occurs in which phase of bacterial growth:
✅ B. Log phase
Option A: Lag phase Option B: Log phase Option C: Stationary phase Option D: Death / decline phase Correct Answer : Log phase Read more
665. Spirochete is an example of___________?
✅ B. Anaerobic bacteria
Option A: Aerobic bacteria Option B: Anaerobic bacteria Option C: Facultative bacteria Option D: Microaerophilic Correct Answer : Anaerobic bacteria Read more
666. The first bacterium isolated was_________________?
✅ B. Bacillus
Option A: Coccus Option B: Bacillus Option C: Vibrio Option D: Spirochete Correct Answer : Bacillus Read more
667. Which of the following bacteria are thick rigid and spiral______________?
✅ B. Spirillum
Option A: Vibrio Option B: Spirillum Option C: Spirochete Option D: Coccus Correct Answer : Spirillum Read more
668. A group of 8 cocci is called______________?
✅ D. Sarcina
Option A: Diplococci Option B: Octococci Option C: Tetrad Option D: Sarcina Correct Answer : Sarcina Read more
669. Approximately _____ species of bacteria are known to cause diseases in humans.
✅ B. 200
Option A: 100 Option B: 200 Option C: 300 Option D: 400 Correct Answer : 200 Read more
670. Cyanobacteria reproduce by____________?
✅ A. Binary fission
Option A: Binary fission Option B: Mitosis Option C: Meiosis Option D: Conjugation Correct Answer : Binary fission Read more
671. Which of the following help cyanobacteria to locomote?
✅ B. Gas vesicles
Option A: Flagella Option B: Gas vesicles Option C: Both of these Option D: None of these Correct Answer : Gas vesicles Read more
672. Cyanobacteria have ________ cell wall?
✅
Option A: Gram +v Option B: E. Option C: B. Gram v Option D: E. Correct Answer : Gram ve. Read more
673. Who developed the vaccine against anthrax?
✅ A. Louis Pasteur
Option A: Louis Pasteur Option B: Edward Jennar Option C: Leuvenhoek Option D: Alexander Fleming Correct Answer : Louis Pasteur Read more
674. Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?
✅ A. Antiseptics
Option A: Antiseptics Option B: Disinfectants Option C: Antibiotics Option D: Vaccines Correct Answer : Antiseptics Read more
675. E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________?
✅ C. 1.1-1.5 um (width) 2.0-6.0 um (length)
Option A: 0.1-600 um Option B: 100-200 nm Option C: 1.1-1.5 um (width) 2.0-6.0 um (length) Option D: 0.75-1.25 um Correct Answer : 1.1-1.5 um (width) 2.0-6.0 um (length) Read more
676. In bacterial categories the bacteria smaller in number are_______________?
✅ C. Ancient bacteria
Option A: Gram-ive bacteria Option B: Eubacteria Option C: Ancient bacteria Option D: Gram +ive bacteria Correct Answer : Ancient bacteria Read more
677. Germ theory of disease has________________postulates?
✅ C. 4
Option A: 3 Option B: 5 Option C: 4 Option D: 6 Correct Answer : 4 Read more
678. Some bacteria ranging occasionally a size of 500 ?m in length are___________________?
✅ B. Spirochetes
Option A: Escherichia coli Option B: Spirochetes Option C: Mycoplasma Option D: Epulopiscuim Correct Answer : Spirochetes Read more
679. Coccobacillus has a shape similar to________________?
✅ C. Egg
Option A: Diplobacillus Option B: Sarcina Option C: Egg Option D: None of these Correct Answer : Egg Read more
680. Which of the following statement is incorrect about algae______________?
✅ A. Their zygote unlike plants is protected by parental tissue
Option A: Their zygote unlike plants is protected by parental tissue Option B: Their classification is based on pigment composition Option C: Most of them have different morphological forms in-different stages of their life cycle Option D: Almost all of them are aquatic Correct Answer : Their zygote unlike plants is protected by parental tissue Read more