NEET Biology Solved Question Paper 2004

Multiple Choice Questions

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In split genes the coding sequences are called

  • introns

  • exons

  • cistrons

  • operons

B.

exons

Split genes were discovered by Phillip Sharp and Robert Richard. The part of DNA which express itself by making mRNA is called exon. One exon is separated from others by inactive part of DNA called intron. This is called split DNA.

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    The joint of radio-ulna with the upper arm is

    • hinge joint

    • pivot joint

    • socket joint

    • none of these

    Answer

    Dinosaurs become extinct in

    • Permian age

    • Triassic period

    • Jurassic period

    • Cretaceous period

    Answer

    The infective stage of Plasmodium is

    • sporozoite

    • merozoite

    • trophozoite

    • schizont

    Answer

    A man of blood group 'A', marries a woman of blood group 'B', both of them are heterozygous for blood group, chances of their first child having blood group AB will be

    • 25%

    • 50%

    • 75%

    • 100%

    Answer
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    Which one of the following is vestigeal organ of human

    • Hair

    • Intestine

    • Wisdom teeth

    • Muscle of glottis

    Answer

    Which of the following pairs is correctly matched

    • Central dogma- Codon

    • Okazaki fragments - Splicing

    • RNA polymerase -RNA primer

    • Restriction enzymes - Genetic engineering

    Answer

    Stanley Miller performed an experiment to prove the origin of life. They took gases NH3 and H2 along with

    • N2 and H2O

    • H2O and CH4

    • CH4 and N2

    • CO2 and NH3

    Answer

    If the pollen tube enters the ovule through funiculus, the phenomenon is known as

    • porogamy

    • chalazogamy

    • mesogamy

    • heterogamy

    Answer
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    Which of the following is the most resistant material in pollen grain

    • Sporopollenin

    • Intine

    • Exine

    • Certicle

    Answer