1.

    The definitive evidence establishing DNA as the genetic material was derived from the experiments of:

    A

    James Watson and Francis Crick

    B

    Frederick Griffith

    C

    Oswald Avery, Colin MacLeod, and Maclyn McCarty

    D

    Alfred Hershey and Martha Chase

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    PYQ YEAR: 2017
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Molecular Basis of Inheritance, DNA as Genetic Material

    Related Questions

    1.

    The final proof of DNA as the genetic material came from the experiment of

    A

    Hargobind Khorana

    B

    Griffith

    C

    Hershey and Chase

    D

    Avey, Mcleod and McCarty

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :DNA as genetic material, historical experiments in genetics

    2.

    Radioactive Phages were allowed to attach to?

    A

    Bacteriophage

    B

    E. Coli

    C

    Salmonella

    D

    HIV Virus

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Bacteriophage, E. Coli, Viral Infection, Molecular Biology

    3.

    Which observation from Griffith's experiment with Streptococcus pneumoniae provided the strongest evidence for the existence of a 'transforming principle'?

    A

    Live non-virulent bacteria did not cause disease in mice.

    B

    Heat-killed virulent bacteria did not cause disease in mice.

    C

    Live virulent bacteria caused disease in mice.

    D

    Heat-killed virulent bacteria, when mixed with live non-virulent bacteria, caused the latter to become virulent.

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Hard
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Griffith's Experiment, Transforming Principle, Bacterial Transformation, Genetic Material

    4.

    If Hershey and Chase had found radioactive sulfur (35S^{35}S) inside the bacteria instead of radioactive phosphorus (32P^{32}P), what would have been the conclusion of their experiment?

    A

    DNA is the genetic material.

    B

    Protein is the genetic material.

    C

    Both DNA and protein are the genetic material.

    D

    Neither DNA nor protein is the genetic material.

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    PYQ YEAR: 2017
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Molecular Basis of Inheritance, DNA as Genetic Material

    5.

    Griffith conducted his transformation experiments on?

    A

    E. Coli

    B

    Tetracoccus

    C

    Diplococcus

    D

    Penicillin

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Griffith's transformation experiment, bacterial genetics

    6.

    If Hershey and Chase had found both 32P and 35S inside the bacteria, what would have been the conclusion of their experiment regarding the genetic material?

    A

    DNA is the genetic material

    B

    Protein is the genetic material

    C

    Both DNA and protein are the genetic material

    D

    The experiment would be inconclusive regarding which molecule is the genetic material

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    PYQ YEAR: 2023
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :DNA as genetic material, Hershey-Chase experiment

    7.

    From his transformation experiment Griffith concluded with transforming principle might be?

    A

    DNA

    B

    Polysaccharide Capsule

    C

    RNA

    D

    None

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    âš¡ Time Required :2 mins
    🔄Ncert Concepts :Griffith's experiment, bacterial transformation, transforming principle

    8.

    Which experiment definitively proved that DNA, and not protein, carries genetic information?

    A

    Griffith's transformation experiment

    B

    Avery, MacLeod, and McCarty's experiment

    C

    Meselson and Stahl's DNA replication experiment

    D

    Hershey and Chase's bacteriophage experiment

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    PYQ YEAR: 2017
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Molecular Basis of Inheritance, DNA as Genetic Material

    9.

    What was the transforming principle identified by Avery, MacLeod, and McCarty?

    A

    Protein

    B

    RNA

    C

    DNA

    D

    Carbohydrates

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Avery-MacLeod-McCarty experiment, DNA, Bacterial Transformation

    10.

    In his bacteriophage experiments, Hershey and Chase demonstrated that DNA is genetic material in

    A

    TMV

    B

    EscherichiacoliEscherichia{\rm{ }}coli

    C

    T2{T_2} bacteriophage

    D

    DiplococcuspneumoniaeDiplococcus{\rm{ }}pneumoniae

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Hershey-Chase experiment, genetic material, bacteriophage

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