Multiple Choice Questions

Advertisement

Gonads are derived from

  • Ectoderm

  • Mesoderm

  • Endoderm

  • None of the above


B.

Mesoderm

Gonads are derived from the mesodermal germinal ridges of the embryo which contain mesodermal epithelium and large spherical primitive germs cells.


Advertisement

The portion of the endometrium that covers the embryo and is located between the embryo and the uterine cavity is the

  • Decidua basalis

  • Desidua umbilicus

  • Desidua capsularis

  • Deciduas functionalis


Depo-provera refers to

  • Injectible contraceptive

  • Intra uterine device

  • Implant

  • Oral contraceptive


An occupational lung disease that occurs in humans, among those given below is

  • Dyspnea

  • Anthracosis

  • Atelectasis

  • Cyanosis


During which geological period of evolution did the greatest diversification of life occurred on the earth?

  • Permian

  • Jurassic

  • Cambrian

  • Ordovician


Advertisement

Specific radioactive identification of ribosomal RNA can be achieved by using C14 labelled

  • Guanine

  • Uracil

  • thymine

  • Cytocine


Meniere’s disease is associated with

  • Ear

  • Eye

  • Nose

  • Throat


The number of chromosomes in a primary spermatocyte is

  • Same as in spermatid

  • Same as in spermatogonium

  • Help of that in spermatogonium

  • Same as in secondary spermatocyte


Which of the following is not correctly matched?

  • Trichomonas vaginalis – Leishmaniasis

  • Glossina palpalis – Sleeping sickness

  • Aedes agypti – Yellow fever

  • Culex pipceins – Filariasis


Advertisement

What base is responsible for hot spots for spontaneous pint mutations?

  • Adenine

  • Guanine

  • 5-bromouracil

  • 5-methyl cytosine