Multiple Choice Questions

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Genetic material found in Human Immunodeficiency Virus (HIV) is

  • Double stranded RNA

  • Single stranded RNA

  • Double stranded DNA

  • Single stranded DNA


B.

Single stranded RNA

Human Immunodeficiency Virus (HIV) is the causal organism of AIDS (Acquired Immuno Deficiency Syndrome). It is a retrovirus belonging to the family-Retroviridae. The core of HIV contains two molecules of single-stranded RNA (as genetic material) and reverse transcriptase.


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Spermatogenesis is under the regulatory influence of

  • ADH

  • FSH

  • LH

  • STH


Which of the following can be controlled by using biopesticides?

  • Insects

  • Diseases

  • Weeds

  • All of these


Which hormone is secreted in a woman if pregnancy has occurred?

  • Estrogen

  • Progesterone

  • Luteinizing hormone

  • Human chorionic gonadotropin


The product of biotechnology is

  • transgenic crops (GM crops)

  • humulin

  • biofertilizer

  • All of the above


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Menstruation is due to sudden

  • Reduction of FSH

  • Increase of LH

  • Reduction in estrogen and progesterone

  • None of the above


Which of these is used to control human population?

  • Estrogen + progesterone

  • IUCD and MTP

  • Tubectomy and vasectomy

  •  All of the above


Addiction to alcohol causes

  • Cirrhosis

  • Epilepsy

  • Neurosis

  • Psychosis


Which has an additional X-chromosome?

  • Turner’s syndrome

  • Klinefelter’s syndrome

  • Super female

  • Down’s syndrome


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Origin of life occurred in

  • Precambrian

  • Coenozoic

  • Palaeozoic

  • Mesozoic