Related Questions

    1.

    If the RNA world hypothesis is correct, which of the following would be the MOST likely scenario for the emergence of DNA?

    A

    DNA spontaneously arose independent of RNA and eventually outcompeted RNA.

    B

    Proteins evolved first and then catalyzed the formation of DNA from RNA.

    C

    RNA developed the ability to synthesize deoxyribonucleotides and polymerize them, eventually leading to DNA genomes.

    D

    Extraterrestrial DNA was introduced to Earth and replaced RNA.

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    5.

    Given below are two statements:

    Statement I: RNA has a higher mutation rate than DNA.

    Statement II: Viruses with RNA genomes and shorter lifespans exhibit faster mutation and evolution.

    In light of the above statements, choose the correct answer from the options given below:

    A

    Both Statement I and Statement II are correct, and Statement II is the correct explanation of Statement I.

    B

    Both Statement I and Statement II are correct, but Statement II is not the correct explanation of Statement I.

    C

    Statement I is correct, but Statement II is incorrect.

    D

    Statement II is correct, but Statement I is incorrect.

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    6.

    Why do RNA viruses, particularly those with short lifespans, tend to evolve more rapidly than DNA viruses?

    A

    Lower mutation rate in RNA and longer life span

    B

    Higher mutation rate in RNA and shorter life span

    C

    Lower mutation rate in DNA and shorter life span

    D

    Similar mutation rates in RNA and DNA

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