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Biological Classification Test - 87

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Biological Classification Test - 87
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Weekly Quiz Competition
  • Question 1
    1 / -0
    The bacteria which lacks flagella and moves by gliding are included in?
    Solution
    Myxobacteria are the group of bacteria that live in soil and feed on soluble organic matter and also move by gliding movement in swarms as they are devoid of flagella while rickettsia are non motile and spirochetes are motile.
    So the correct answer is "Myxobacteria".
  • Question 2
    1 / -0
    Which of the following represents obligate anaerobes?
    Solution
    D. Methane bacteria
    Solution: Methane bacteria or methanogenic bacteria are archaebacteria. They produce methane as metabolic byproduct. They generate ATP by synthesizing methane in strictly anaerobic environment.
    So the correct answer is "Methane bacteria".
  • Question 3
    1 / -0
    Which is incorrect about E.coil?
    Solution
    • Escherichia coli, also known as E. coli, is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms.
    • In Bacteria there is only one copy of the chromosome, bacterial cells are considered haploid.For example,E.coli.
    • Hence E.coli is a diploid is a wrong statement because all bacteria are haploid in nature.
    • So, the correct answer is 'Option A'.
  • Question 4
    1 / -0
    Lamprey is?
  • Question 5
    1 / -0
    The lower thalloid plants like algae and fungi exhibit :
  • Question 6
    1 / -0
    Scypha belongs to a group of animals, which are best described as?
  • Question 7
    1 / -0
    Which one of the following statements regarding viruses is not true ?
    Solution
    Viruses can not synthesize their food through photosynthesis because they do not contain chlorophyll as they are non- living outside the host's body.
  • Question 8
    1 / -0
    Which of the following are kingdoms?
    Solution
    D. All of the above
    Solution : According to Whittaker's five kingdom classification system, the five kingdoms of life are monera, protista, fungi, plantae and animalia.
    So the correct answer is "All of the above".
  • Question 9
    1 / -0
    Identify the diagram

    Solution
    • Tobacco mosaic virus (TMV) is a simple rod-shaped helical virus consisting of centrally located single-stranded RNA (5.6%) enveloped by a protein coat (94.4%). The protein coat is technically called ‘capsid’. R. Franklin estimated 2,130 sub-units, namely, capsomeres in a complete helical rod and 49 capsomeres on every three turns of the helix; thus there would be about 130 turns per rod of TMV. Hence given diagram (C) represents TMV.
    • So,the correct answer is 'TMV'.
  • Question 10
    1 / -0
    The genetic material of $$\phi \times 174$$ is
    Solution
    • Bacteriophage ϕ×174 is a single-stranded DNA virus that infects Escherichia coli, and the first DNA-based genome to be sequenced. Its DNA is composed of 5386 nucleotides.
    • The Bacteriophage ϕ×174 belong to the family microviridae.
    • Hence the genetic material of ϕ×174 is SSDNA(Single-stranded DNA).
    • So, the correct answer is 'SSDNA'
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