1.

    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
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Griffith's Experiment, Transforming Principle, Bacterial Transformation, Genetic Material

    Related Questions

    1.

    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
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Hershey-Chase experiment, genetic material, bacteriophage

    2.

    Which molecule carries the genetic information in bacteriophages?

    A

    DNA

    B

    RNA

    C

    Protein

    D

    Lipids

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Bacteriophage, DNA, Genetic Material

    3.

    What did Griffith observe when he injected a mixture of heat-killed S strain and live R strain bacteria into mice?

    A

    The mice died, and live S strain bacteria were recovered.

    B

    The mice survived.

    C

    The mice died, and live R strain bacteria were recovered.

    D

    The mice survived, and a new strain of bacteria was recovered.

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Griffith's Experiment, Transforming Principle, Bacterial Transformation

    4.

    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
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Molecular Basis of Inheritance, DNA as Genetic Material

    5.

    What radioactive element was used to label the protein part of the bacteriophage in the Hershey-Chase experiment?

    A

    Sulfur (35S)

    B

    Phosphorus (32P)

    C

    Nitrogen (15N)

    D

    Carbon (14C)

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Hershey-Chase Experiment, Radioactive Labeling, DNA, Protein

    6.

    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
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :DNA as genetic material, historical experiments in genetics

    7.

    Hershey and Chase utilized bacteriophages to demonstrate that DNA is the genetic material. What is a bacteriophage?

    A

    A type of bacteria

    B

    A bacterial enzyme

    C

    A virus that infects bacteria

    D

    A component of bacterial DNA

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

    8.

    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
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Griffith's Transformation Experiment, Bacteriology

    9.

    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
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Griffith's transformation experiment, bacterial genetics

    10.

    Which scientist's experiment definitively proved that DNA is the genetic material?

    A

    Hershey and Chase

    B

    Avery, MacLeod, and McCarty

    C

    Griffith

    D

    Meselson and Stahl

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:The Search Of Genetic Material
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :DNA, Genetic Material, Hershey-Chase Experiment

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