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Proofreading01:43

Proofreading

Synthesis of new DNA molecules starts when DNA polymerase links nucleotides together in a sequence that is complementary to the template DNA strand. DNA polymerase has a higher affinity for the correct base to ensure fidelity in DNA replication. The DNA polymerase furthermore proofreads during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.Errors during Replication Are Corrected by the DNA Polymerase EnzymeGenomic DNA is synthesized in...
Proofreading01:43

Proofreading

Synthesis of new DNA molecules starts when DNA polymerase links nucleotides together in a sequence that is complementary to the template DNA strand. DNA polymerase has a higher affinity for the correct base to ensure fidelity in DNA replication. The DNA polymerase furthermore proofreads during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.Errors during Replication Are Corrected by the DNA Polymerase EnzymeGenomic DNA is synthesized in...
Termination of Translation01:44

Termination of Translation

The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is the site where the peptide bond is formed - and a large, internal, water-filled tube through which the nascent polypeptide moves. This latter structure is called the Peptide Exit Tunnel, and it begins at the PTC and spans the body of the large ribosomal subunit. During translation, as the nascent polypeptide chain is synthesized, it passes through...
Termination of Translation01:44

Termination of Translation

The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is the site where the peptide bond is formed - and a large, internal, water-filled tube through which the nascent polypeptide moves. This latter structure is called the Peptide Exit Tunnel, and it begins at the PTC and spans the body of the large ribosomal subunit. During translation, as the nascent polypeptide chain is synthesized, it passes through...
Proofreading01:31

Proofreading

Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore,  it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase Enzyme
Variance01:15

Variance

The deviations show how spread out the data are about the mean. A positive deviation occurs when the data value exceeds the mean, whereas a negative deviation occurs when the data value is less than the mean. If the deviations are added, the sum is always zero. So one cannot simply add the deviations to get the data spread. By squaring the deviations, the numbers are made positive; thus, their sum will also be positive.The standard deviation measures the spread in the same units as the data.

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Related Experiment Video

Updated: Jun 25, 2026

Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

Erratum

    Science (New York, N.Y.)
    |October 22, 1982
    PubMed
    Summary

    This article discusses alternative energy futures, advocating for electricity as a primary energy source. It highlights the importance of understanding energy consumption trends for future planning.

    Area of Science:

    • Energy Policy
    • Sustainable Energy
    • Energy Economics

    Background:

    • The transition to sustainable energy sources is a critical global challenge.
    • Electricity is increasingly central to future energy systems.
    • Accurate data representation is essential for informed energy policy discussions.

    Purpose of the Study:

    • To advocate for electricity as a key component of alternative energy futures.
    • To present data supporting the case for electricity.
    • To ensure clarity and accuracy in scientific communication regarding energy data.

    Main Methods:

    • Analysis of energy consumption trends.
    • Focus on per capita electricity consumption (kWh).
    • Graphical representation of data for the period 1972-1978.

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    Last Updated: Jun 25, 2026

    Molecular Evolution of the Tre Recombinase
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    Published on: May 29, 2008

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    The Lambda Select cII Mutation Detection System

    Published on: April 26, 2018

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    Main Results:

    • Figure 4 illustrates the percentage increase in per capita electricity consumption.
    • Data covers the period from 1972 to 1978.
    • The corrected label clarifies the specific metric shown in the figure.

    Conclusions:

    • Electricity plays a vital role in alternative energy strategies.
    • Understanding historical consumption patterns informs future energy planning.
    • Accurate data visualization is crucial for effective communication in energy research.