Multiple Choice Questions

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Pureline breed refers to

  • homozygosity

  • heterozygosity

  • homozygosity with only dominant genes

  • heterozygosity and linkage


A.

homozygosity

Pure line breed refers to a group of identical individuals that always produce offspring of the same phenotype when intercrossed. This occurs only when they are homozygous.


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Which of the following plant is efficient converter of solar energy whose net productivity is 2-4 kg/m2/yr or even higher?

  • Wheat

  • Rice

  • Sugarcane

  • Bajra


The movements of neutrophils to the site of inflammation is due to

  • release of hormone

  • Chemotaxis

  • activity of antigens

  • activations of antigens


What type of sorus is present in Nephrolepsis?

  • Coenosorus

  • Simple

  • Mixed

  • None of these


If a boy's father has haemophilia and his mother has one gene for haemophilia, what is the chance that the boy will inherit the disease?

  • 100%

  • 50%

  • 0%

  • 75%


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Elephantiasis is caused by

  • Entamoeba coli

  • trematodes

  • cestodes

  • Wuchereria bancrofti


Which one of the following codons codes for the some information as UGC?

  • UGU

  • UGA

  • UAG

  • UGG


Male mosquito is not sanguivore as

  • it lacks cutting and biting mandibles

  • it does not require any kind of proteins

  • it lacks smelling power

  • All of the above


On the basis of utility, Nagpuri buffaloes are categorized as

  • milkers

  • dual purpose

  • drought cattle

  • grazers


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Rarely observed phenotype in population is called

  • wild type

  • mutant type

  • variant type

  • All of these