DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by

• centrifugation

• polymerase chain reaction

• electrophoresis

• restriction mapping

The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of

• Non-recombinant bacteria containing $\mathrm{\beta }$-galactosidase

• lnsertional inactivation of $\mathrm{\alpha }$-galactosidase in non-recombinant bacteria

• lnsertional inactivation of $\mathrm{\alpha }$-galactosidase in recombinant bacteria

• Inactivation of glycosidase enzyme in recombinant bacteria

63.

Secondary productivity is rate of formation of new organic matter by

• producer

• parasite

• consumer

• decomposer

Which one of the following is not used for ex situ plant conservation?

• Field gene banks

• Seed banks

• Shifting cultivation

• Botanical gardens

Kyoto Protocol was endorsed at

• CoP - 3

• CoP - 5

• CoP - 6

• CoP - 4

Which of the following represent maximum number of species among global biodiversity?

• Algae

• Lichens

• Fungi

• Mosses and ferns

Match the name of the animal (Column I) with one characteristics (Column II) and the phylum/class (Column III) to which it belongs

• Column I	Column II	Column III
  Petromyzon	Ectoparasite	Cyclostomata

• Ichthyophis

  Terrestrial

  Reptilia

• Limulus

  Body covered by chitinous exoskeleton

  Pisces

• Adamsia

  Radially symmetrical

  Porifera

A pregnant female delivers a baby, who suffers from stunted growth, mental retardation low intelligence quotient and abnormal skin. This is the result of

• deficiency of iodine in diet

• low secretion of growth hormone

• cancer of the thyroid gland

• over secretion of pars distalis

What is the correct sequence of sperm formation?

• Spermatid, Spermatocyte, Spermatogonia, Spermatozoa

• Spermatogonia, Spermatocyte, Spermatozoa, Spermatid

• Spermatogonia, Spermatozoa, Spermatocyte, Spermatid

• Spermatogonia, Spermatocyte, Spermatid, Spermatozoa

Menstrual flow occurs due to lack of

• progesterone

• FSH

• oxytocin

• vasopressin