Tag: zoology

Questions Related to zoology

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

Correct sequence of code transfer during polypeptide formation is

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

  1. DNA, mRNA, tRNA and amino acids

  2. DNA, tRNA, rRNA and mRNA

  3. mRNA, tRNA, DNA and amino acids

  4. rRNA, DNA, mRNA and tRNA

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Correct Option: A

Transformation experiments in bacteria were first performed by 

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

  1. Macleod

  2. Griffith

  3. Pasteur

  4. Meselson and Stahl

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Correct Option: B

Bacteriophage with radioactivity both in DNA and protein infects a bacterium. Bacterium becomes radioactive. Radioactivity occurs in

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

  1. Protein

  2. DNA

  3. All parts

  4. Both A and B

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Correct Option: B

DNA was proved to be genetic material through experiment of

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

  1. Transduction

  2. Replica experiment

  3. Viral infection of Tobacco

  4. Transformation

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Correct Option: D