Multiple Choice Questions

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Select the correct match

  • Ribozyme - Nucleic acid

  • F2 × Recessive parent - Dihybrid cross

  • G. Mendel - Transformation

  • T.H. Morgan - Transduction


A.

Ribozyme - Nucleic acid

A ribozyme is a catalytic RNA, which is a nucleic acid.


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Which of the following pairs is wrongly matched?

  • Starch synthesis in pea: Multiple alleles

  • ABO blood grouping: Co-dominance

  • T.H. Morgan: Linkage

  • XO type sex determination: Grasshopper


A ‘new’ variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to

  • Co-667

  • Sharbati Sonora

  • Basmati

  • Lerma Rojo


The correct order of steps in Polymerase Chain Reaction (PCR) is

  • Extension, Denaturation, Annealing

  • Annealing, Extension, Denaturation

  • Denaturation, Annealing, Extension

  • Denaturation, Extension, Annealing


In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

  • Indian Council of Medical Research (ICMR)

  • Council for Scientific and Industrial Research (CSIR)

  • Genetic Engineering Appraisal Committee (GEAC)

  • Research Committee on Genetic Manipulation (RCGM)


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Which of the following has proved helpful in preserving pollen as fossils?

  • Pollenkitt

  • Cellulosic intine

  • Sporopollenin

  • Oil content


The experimental proof for semiconservative replication of DNA was first shown in a

  • Fungus

  • Bacterium

  • Virus

  • Plant


Select the correct statement

  • Franklin Stahl coined the term ‘‘linkage’’

  • Punnett square was developed by a British scientist

  • Transduction was discovered by S. Altman

  • Spliceosomes take part in translation


Offsets are produced by

  • Meiotic divisions

  • Mitotic divisions

  • Parthenogenesis

  • Parthenocarpy


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Select the correct match

  • Alec Jeffreys - Streptococcus pneumoniae

  • Alfred Hershey and Martha Chase - TMV

  • Francois Jacob and Jacques Monod - Lac operon

  • Matthew Meselson and F. Stah - Pisum sativum