Multiple Choice Questions

Advertisement

The technique called gamete intra-fallopian transfer (GIFT) is recommended for those females

  • who cannot produce an ovum

  • who cannot retain  the foetus inside uterus

  • who cervical canal is too narrow to allow passage for the sperms

  • who cervical canal is too narrow to allow passage for the sperms


A.

who cannot produce an ovum

The technique called gamete intra-fallopian transfer (GIFT) is a transfer of an ovum collected from a donor into the fallopian tube of another female. This technique is recommended for those females who can not produce an ovum but can provide a suitable environment for fertilisation and further development.

552 Views

Advertisement

Silencing of mRNA has been used in producing transgenic plants resistant to

  • bollworms

  • nematodes

  • White rusts

  • White rusts

284 Views

Consider the following statements ( I - IV) about organic farming.

I. Utilises genetically modified crops like Bt cotton
II. Uses only naturally produced inputs like compost.
III. Does not use pesticides and urea
IV. Produces vegetables rich in vitamins and minerals.

  • (II), (III) and (IV)

  • (III) and (IV) only

  • (II) and (III) only

  • (II) and (III) only

319 Views

Bacillus thuringiensis forms protein crystals, which contain insecticidal protein

  • binds with epithelial cells of midgut of the insect pest ultimately killing it

  • is coded by several genes including the gene cry

  • is acitvated by acid of pH of the foregut is the insect pest

  • is acitvated by acid of pH of the foregut is the insect pest

411 Views

Both, hydrarch and xerarch successions lead to

  • medium water conditions

  • xeric conditions

  • highly dry conditions

  • highly dry conditions

1033 Views

Advertisement

What happens during fertilisation in humans after many sperms reach close to the ovum?

  • Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida

  • All sperms excepts the one nearest to the ovum lose their tails

  • Cells of corona radiata trap all the sperms excepts one 

  • Cells of corona radiata trap all the sperms excepts one 

490 Views

Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?

  • Sparrow

  • Lion

  • Goat

  • Goat

441 Views

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH surge) normally occurs?

  • 14th day

  • 20th day

  • 5th day

  • 5th day

517 Views

Which one of the following pairs is wrongly matched while the remaining three are correct?

  • Penicillium - Conidia

  • Water hyacinth - Runner

  • Bryophyllum - Leat buds

  • Bryophyllum - Leat buds

422 Views

Advertisement

Read the following statement having two blanks (1 and 2). 

A drug used for ..... (1) ...... patients is obtained from a species of the organism ....... (2).....The one correct option for the two blanks is.

  • Blank – 1
    Blank – 2
    Heart
    Penicillium
  • Blank – 1

    Blank – 2

    Organ - transplant

    Trichoderma
  • Blank – 1

    Blank – 2

    Swine flu

    Monascus
  • Blank – 1

    Blank – 2

    Swine flu

    Monascus
376 Views