Tag: molecular genetics

Questions Related to molecular genetics

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

From their experiments on Neurospora crassa, Beadle and Tatum proposed

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

  1. One gene one polypeptide hypothesis

  2. One gene one enzyme hypothesis

  3. One gene one function hypothesis

  4. Many genes one enzyme hypothesis

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Correct Option: B

Plant cell can be transformed through

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

  1. Electrolysis

  2. Electroporation

  3. Electrophoresis

  4. Electroduction

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Correct Option: B

Which is correctly matched ?

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

  1. Frederick Griffith - Discovered transformation

  2. Linus Pauling - Isolated DNA for first time

  3. Francis Crick - Proposed one gene - one polypeptide hypothesis

  4. George Beadle - Proposed concept of inborn errors

  5. Jacob and Monod Proposed Wobble hypothesis

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Correct Option: A

All the terminator codons begin with

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

  1. Guanine

  2. Uracil

  3. Cytosine

  4. Adenine

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Correct Option: B

DNA element with ability to change its position is

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

  1. Cistron

  2. Transposon

  3. Intron

  4. Recon

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Correct Option: B

Find out the correct options
1. Amino acids may have more than one codon
2. All amino acids have more than one codon
3. Codons are common for higher and lower organisms
4. Codons are not found in bacteria

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

  1. 1, 2, 3 correct

  2. 1, 2 correct

  3. 2, 4 correct

  4. 1, 3 correct

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Correct Option: D