Questions

M.C.Q [1M]

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18 questions · timed · auto-graded

MCQ 11 Mark
What is the relationship between mycorrhiza fungus and roots.
  • A
    Parasite
  • B
    Saprophyte
  • C
    Symbiotic
  • D
    Epiphyte
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MCQ 21 Mark
Who was awareded the Nobel prize for artificial gene synthesis-
  • A
    Hargobind Khurana
  • B
    M.S. Swaminathan
  • C
    B.P. Paul
  • D
    P. Maheshwari
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MCQ 31 Mark
The symptoms of double fertilization and triple fusion are-
  • A
    Gymnosperm
  • B
    Angiosperm
  • C
    Bryophytes
  • D
    Pteridophytes
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MCQ 41 Mark
Energy stored at the consumer level is called-
  • A
    Gross primary productivity
  • B
    Secondary productivity
  • C
    Net primary productivity
  • D
    Net productivity
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MCQ 61 Mark
Speech centre was developed in which of the following
  • A
    Chromagnan man
  • B
    Neanderthal man
  • C
    Ramapithecous man
  • D
    Homohabilis man
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MCQ 81 Mark
Which of the following is used in making of bread-
  • A
    Rhizopus
  • B
    Zygosaccharomyces
  • C
    Saccharomyces Cerevisiae
  • D
    Saccharomycodus
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MCQ 91 Mark
When both the alleles living together show their effect, then this phenomenon is called-
  • A
    Dominance
  • B
    Co-dominance
  • C
    Pseudodominance
  • D
    Amphidominance
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MCQ 101 Mark
How many types of genotypes are formed in the $F_{2}$ progeny from self pollination in $\mathrm{F}_{1}$ dihybrid cross-
  • A
    6
  • B
    3
  • C
    9
  • D
    4
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MCQ 111 Mark
Earth summit in Rio de Janeiro is related to-
  • A
    Fertility of the soil
  • B
    From the survey of Natural resources
  • C
    Protection of environment
  • D
    By preserving forests.
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MCQ 121 Mark
Which Hormone is at its highest level during the luteal phase of menstruation.
  • A
    LH
  • B
    Progesterone
  • C
    FSH
  • D
    Estrogen
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MCQ 141 Mark
The structural gene in lac operon is switched off when-
  • A
    When repressor is bind to the operator
  • B
    When repressor is bind to the promoter
  • C
    When repressor is bind to the inducer
  • D
    When repressor is bind to the lactose
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MCQ 161 Mark
Edward Jenner discovered-
  • A
    Polio vaccine
  • B
    Immunity against polio
  • C
    Vacciniation against small pox
  • D
    Immunity against small pox
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MCQ 181 Mark
Biopiracy is related to-
  • A
    From biological reserch
  • B
    From tradiational knowledge
  • C
    By the discovery of biomolecule and genes
  • D
    All of the above
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M.C.Q [1M] - BIOLOGY STD 12 Science Questions - Vidyadip