Multiple Choice Questions

Advertisement

In angiosperms, triple fusion results in the formation of:

  • zygotic nucleus

  • polar nucleus

  • secondary nucleus

  • primary endosperm nucleus


D.

primary endosperm nucleus

In angiosperms, triple fusion results in the formation of primary endosperm nucleus. It is the fusion of the second male gamete with the diploid secondary nucleus.


Advertisement

In Musa, inflorescence is :

  • spadix

  • corymb

  • capitulum

  • polychasial cyme


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


A flower characterised by monadelphous tubular stamens belongs to :

  • Solanaceae

  • Liliaceae

  • Malvaceae

  • Brassicaceae


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

  • Labeo

  • Mugil

  • Hilsa

  • Sardines


Advertisement

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


Physiologically active thyroxine exists in which of the following form ?

  • Unbound

  • Bound to albumin

  • Bound to globulin

  • All of the above


Neurohypophysis secretes

  • ADH and oxytocin

  • oxytocin and estrogen

  • vasopressin and GH

  • vasopressin and estrogen


Which of the following is a viral disease in silkworm ?

  • Flacherie

  • Grasserie

  • Muscardine

  • Pebrine


Advertisement

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