Tag: molecular genetics

Questions Related to molecular genetics

Gel electyrophoresis is used for

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Construction of recombinant DNA by joining with cloning vectors

  2. Isolation of DNA molecule

  3. Cutting of DNA into fragments

  4. Separation of DNA fragments according to their size

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Correct Option: D

70S ribosomes, chromatophores and circular DNA are found in 

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. All eukaryotes

  2. All prokaryotes

  3. Some prokaryotes

  4. Some eukaryotes and some prokaryotes

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Correct Option: A

One turn of DNA possesses

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. One base pair

  2. Two base pairs

  3. Five base pairs

  4. Ten base pairs

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Correct Option: D

Griffith effect is

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. DNA transcription

  2. RNA translation

  3. Bacterial transformation

  4. Bacterial transduction

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Correct Option: C

In Streptococcus pneumoniae

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Virulent form is smooth

  2. Virulent form is rough

  3. Nonvirulent form is capsulated

  4. All forms are rough

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Correct Option: A

Bacterium in which transformation was first studied is

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Salmonella typhimurium

  2. Streptococcus pneumoniae

  3. Escherichia coli

  4. Streptococcus aureus

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Correct Option: B

Genetic code determines

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Sequence of amino acids in protein chain

  2. Variations

  3. Constancy of morphological traits

  4. Structural pattern

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Correct Option: A

Arrangement of three successive bases in genetic code signifies

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Protein

  2. Amino acid

  3. Nucleic acid

  4. Plasmid

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Correct Option: B

Operon model of gene regulation and organisation of procaryotes was proposed by

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Messelson arid Stahl

  2. Wilkins and Franklin

  3. Beadle and Tatum

  4. Jacob and Monod

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Correct Option: D

In operon model, RNA polymerase binds to

zoology molecular basis of inheritance the search for genetic material dna structure and replication molecular genetics

  1. Structural gene

  2. Promoter gene

  3. Regulator

  4. Operator gene

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Correct Option: B