1.

    During DNA replication, the enzyme responsible for removing RNA primers and replacing them with DNA is:

    A

    DNA polymerase III

    B

    DNA ligase

    C

    Primase

    D

    DNA polymerase I

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :DNA Replication, Enzymes

    Related Questions

    1.

    Ultimate unit of DNA is

    A

    Nucleotide

    B

    Nucleosome

    C

    Nucleoside

    D

    Polynucleotide

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :DNA structure, Nucleotide

    2.

    SS DNA is present in?

    A

    TMV

    B

    Polio Virus

    C

    Pox Virus

    D

    Ο•imes174\phi imes 174 bacteriophage

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Single-stranded DNA, Virus Structure

    3.

    In which stage chromatin fibers are coiled and condensed to form chromosomes?

    A

    Metaphase

    B

    Telophase

    C

    Anaphase

    D

    Prophase

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Cell cycle, Mitosis, Chromosome structure, Chromatin condensation

    4.

    The central dogma in molecular biology was proposed by?

    A

    Watson

    B

    Wilkins

    C

    Crick

    D

    Franklin

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Central dogma of molecular biology, History of science

    5.

    Nucleotide arrangement in DNA can be seen by?

    A

    X-ray crystallography

    B

    Electron microscope

    C

    Ultracentrifuge

    D

    Light microscope

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :DNA structure, Microscopy techniques

    6.

    Reverse transcription is seen in?

    A

    Bacteria

    B

    Retro Virus

    C

    TMV

    D

    HIV, Virus

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Reverse transcription, retroviruses

    7.

    A single human cell contains approximately 6.6imes1096.6 imes 10^9 base pairs of DNA. Given that the distance between consecutive base pairs is 0.340.34 nm, calculate the total length of DNA in a human cell.

    A

    2.2 m

    B

    0.34 m

    C

    6.6 m

    D

    0.22 m

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    PYQ YEAR: 2020
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :DNA structure, unit conversion

    8.

    The distance between two base pairs in DNA is

    A

    34Γ…

    B

    3.4Γ…

    C

    0.34Γ…

    D

    20Γ…

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :DNA structure, base pairing, distance

    9.

    DNA is denatured by

    A

    Heat

    B

    Acid

    C

    DNA polymerase

    D

    Both (a) and (b)

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :DNA denaturation, heat, acid

    10.

    A molecule suitable to be the carrier of genetic information should possess all these qualities EXCEPT:

    A

    Ability to replicate

    B

    Stable structure

    C

    Capacity to express information

    D

    High reactivity

    Question Tags
    πŸ“š Subject:Botany
    πŸ“‘ Chapter:Molecular Basis of Inheritance
    🎯Topic:Dna
    PYQ YEAR: 2016
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Genetics, DNA, RNA

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