1.

    Which one of the following is the starter codon?

    A

    AUG

    B

    UGA

    C

    UAA

    D

    UAG

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :genetics, codons, translation

    Related Questions

    1.

    The scientist who was awarded Nobel-Prize in 1959 for invitroin{\rm{ }}vitro synthesis of polyribonucleotide?

    A

    Mendel

    B

    Calvin

    C

    Khurana

    D

    Ochoa

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Nobel Prize, in vitro synthesis, polyribonucleotide

    2.

    Which of these scenarios would MOST likely lead to a frameshift mutation that affects the downstream amino acid sequence?

    A

    Substitution of one nucleotide for another

    B

    Deletion of three nucleotides in the coding sequence

    C

    Insertion of two nucleotides in the coding sequence

    D

    Inversion of a segment of DNA containing a multiple of three nucleotides

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Mutations, Frameshift Mutations, Genetic Code

    3.

    The codon AUG is responsible for which of the following?

    A

    Coding for phenylalanine

    B

    Termination of translation

    C

    Coding for lysine

    D

    Initiation of translation and coding for methionine

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    PYQ YEAR: 2021
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Genetic Code, Translation

    4.

    Which of the following exemplifies the degeneracy of the genetic code?

    A

    AUG coding for methionine

    B

    UAA coding for stop signal

    C

    AAA and AAG both coding for lysine

    D

    Each codon coding for a unique amino acid

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    PYQ YEAR: 2021
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Genetic Code

    5.

    A mutation changes a codon from UCU (Serine) to UCC (Serine). What type of mutation is this?

    A

    Missense mutation

    B

    Nonsense mutation

    C

    Frameshift mutation

    D

    Silent mutation

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Genetic Code, Mutations, Silent Mutation

    6.

    The codon AUG codes for which amino acid in eukaryotes at the start of translation?

    A

    Methionine

    B

    Tryptophan

    C

    Valine

    D

    Glycine

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    PYQ YEAR: 2016
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Translation, Genetic Code, Start Codon, Methionine

    7.

    Wobble base pairing allows a single tRNA to recognize multiple codons. Which position of the codon exhibits the MOST flexibility in wobble pairing?

    A

    First base

    B

    Second base

    C

    Third base

    D

    All bases exhibit equal flexibility

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Genetic Code, Wobble Hypothesis, tRNA

    8.

    RNA and DNA were artificially synthesized in-vitro by?

    A

    Ochoa, Nirenberg

    B

    Ochoa, Kornberg

    C

    Kornberg, Nirenberg

    D

    Nirenberg, Khorana

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :History of Molecular Biology, In-vitro synthesis of RNA and DNA

    9.

    If the 8th8^{th}, 9th9^{th} and 10th10^{th} bases (GUG) are deleted from the mRNA sequence {5′AACAGCGGUGCUAUU3′}\{5'AACAGCGGUGCUAUU3'\}, what type of mutation will occur?

    A

    Silent mutation

    B

    Missense mutation

    C

    Nonsense mutation

    D

    Frameshift mutation

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    PYQ YEAR: 2019
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Mutation, Frameshift Mutation

    10.

    Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?

    A

    Genetic code is not ambiguous

    B

    Genetic code is redundant

    C

    Genetic code is nearly universal

    D

    Genetic code is specific

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Molecular Basis of Inheritance
    🎯Topic:Genetic Code
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :genetic code, recombinant DNA technology, universality of genetic code

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