Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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41.

The correct floral formula of chilli is 


A.

Chilli (Capsicum annum) belongs to the family -Solanaceae. In this family, a flower is actinomorphic, complete and bisexual; Calyx has five sepals which are gamosepalous showing valvate aestivation; corolla has five petals which are polypetalous showing valvate aestivation; androecium has five free stamens but epipetalous; gynoecium is bi carpellary, syncarpous, bilocular with superior ovary having axile placentation.

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42.

In which one of the following the genus name, its tow characters and its class/ phylum are correctly matched?

  • Genus
    Two characters
    Class/phylum
    Salaman dra
    i).A tympanum represents ear
    Amphibia
  • Genus

    Two characters

    Class/phylum

    Pteropus

    i)Skin possesses hair

    ii)Oviparous

    Mammalia

  • Genus

    Two characters

    Class/phylum

    Aurelia

    i)Cnidoblas

    ii)Organ level of organization

    Colenterata

  • Genus

    Two characters

    Class/phylum

    Aurelia

    i)Cnidoblas

    ii)Organ level of organization

    Colenterata

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43.

Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it?
5' ______ GAATTC ________ 3'
3'________CTTAAG ________ 5'

  • Deletion mutation

  • Start codon at the 5'end

  • Palindromic sequence of base pairs

  • Palindromic sequence of base pairs

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44.
Compared with the gametophytes of the bryophytes the gametophytes of vascular plants tend to be
  • larger but to have smaller sex organs

  • larger and to haver larger sex organs

  • smaller and to have smaller sex organs

  • smaller and to have smaller sex organs

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45.

Which one of the following statements is correct?

  • Seeds of orchids have oil-rich endosperm

  • Placentation in primrose is basal

  • Flower of tulip is a modified shoot

  • Flower of tulip is a modified shoot

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46.

There is a restriction endonuclease called Eco RI. What does 'co' part in it stand for?

  • Coelom

  • Coenzyme

  • coli

  • coli

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47.

Consider the following four conditions (a - d) and select the correct pair of them as adaptation to environment in desert lizards.
The conditions:
I. Burrowing in soil to escape high temperature.
II. Losing heat rapidly from the body during high temperature
III. Bask in sun when temperature is low
IV. Insulating body due to thick fatty dermis

  • I and III

  • II and IV

  • I and II

  • I and II

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48.

'Jaya' and 'Ratna' developed for green revolution in India are the varieties of

  • rice

  • wheat

  • bajra
  • bajra
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49.

Agarose extracted from sea weeds finds use in

  • tissue culture

  • PCR

  • gel electrophoresis

  • gel electrophoresis

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50.

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

  • A: Triglycerid e- major - source of energy

  • B: Uracil - a component of DNA

  • A - Lecithin - a component of cell membrane

  • A - Lecithin - a component of cell membrane

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