Multiple Choice Questions

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Physiologically active thyroxine exists in which of the following form ?

  • Unbound

  • Bound to albumin

  • Bound to globulin

  • All of the above


A.

Unbound

Once the thyroxine is in the circulation, it binds to albumin. Only the free unbound form of thyroxine is physiologically active.


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Neurohypophysis secretes

  • ADH and oxytocin

  • oxytocin and estrogen

  • vasopressin and GH

  • vasopressin and estrogen


Pancreatic duct of a healthy dog is blocked. Which of the functions of pancreas will not be affected ?

  • Protein digestion

  • Carbohydrate digestion

  • Neutralization of chyme

  • Maintenance of normal blood sugar level


In angiosperms, triple fusion results in the formation of:

  • zygotic nucleus

  • polar nucleus

  • secondary nucleus

  • primary endosperm nucleus


In Musa, inflorescence is :

  • spadix

  • corymb

  • capitulum

  • polychasial cyme


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Which of the following is not the example of marine fishes ?

  • Labeo

  • Mugil

  • Hilsa

  • Sardines


In oogamy, fertilization involves :

  • a small non- motile female gamete and a large motile male gamete

  • a large motile female gamete and a small non-motile male gamete

  • a large non- motile female gamete and a small motile male gamete

  • a large non-motile female gamete and a small non-motile male gamete


A flower characterised by monadelphous tubular stamens belongs to :

  • Solanaceae

  • Liliaceae

  • Malvaceae

  • Brassicaceae


Which of the following is a viral disease in silkworm ?

  • Flacherie

  • Grasserie

  • Muscardine

  • Pebrine


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The most accepted theory of ageing is :

  • less RBC in blood

  • thymus gland becomes non-functional

  • brain cells die with ageing

  • all of the above