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  2. RNA-Seq - Wikipedia

    en.wikipedia.org/wiki/RNA-Seq

    Gene length: Longer genes will have more fragments/reads/counts than shorter genes if transcript expression is the same. This is adjusted by dividing the FPM by the length of a feature (which can be a gene, transcript, or exon), resulting in the metric fragments per kilobase of feature per million mapped reads (FPKM). [90]

  3. Read (biology) - Wikipedia

    en.wikipedia.org/wiki/Read_(biology)

    Sequencing technologies vary in the length of reads produced. Reads of length 20-40 base pairs (bp) are referred to as ultra-short. [2] Typical sequencers produce read lengths in the range of 100-500 bp. [3] However, Pacific Biosciences platforms produce read lengths of approximately 1500 bp. [4] Read length is a factor which can affect the results of biological studies. [5]

  4. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    Subdivisions of the day include the hour (1/24 of a day), which is further subdivided into minutes and seconds. The second is the international standard unit (SI unit) for science. Celestial sphere-based: as in sidereal time, where the apparent movement of the stars and constellations across the sky is used to calculate the length of a year.

  5. DNA sequencing - Wikipedia

    en.wikipedia.org/wiki/DNA_sequencing

    99.9% (Phred30) 1 to 16 million Around 24 hours $667 Low-cost of instrument ($10,000) Chain termination (Sanger sequencing) 400 to 900 bp: 99.9%: N/A: 20 minutes to 3 hours: $2,400,000: Useful for many applications. More expensive and impractical for larger sequencing projects. This method also requires the time-consuming step of plasmid ...

  6. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    While this is strictly 24 hours and 1 second in conventional units, a digital clock of suitable capability level will most often display the leap second as 23:59:60 and not 24:00:00 before rolling over to 00:00:00 the next day, as though the last "minute" of the day were crammed with 61 seconds and not 60, and similarly the last "hour" 3601 s ...

  7. Molecular-weight size marker - Wikipedia

    en.wikipedia.org/wiki/Molecular-weight_size_marker

    There are two common methods in which to construct a DNA molecular-weight size marker. [3] One such method employs the technique of partial ligation. [3] DNA ligation is the process by which linear DNA pieces are connected to each other via covalent bonds; more specifically, these bonds are phosphodiester bonds. [4]

  8. Elon Musk’s new ‘user seconds’ metric is another curious ...

    www.aol.com/finance/elon-musk-user-seconds...

    Globally, the 7-day average was 360.7 billion—with a B—seconds spent on the platform. CEO Linda Yaccarino chimed in with the somewhat confusing rejoinder that “no wonder new users are ...

  9. Molecular clock - Wikipedia

    en.wikipedia.org/wiki/Molecular_clock

    The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged.The biomolecular data used for such calculations are usually nucleotide sequences for DNA, RNA, or amino acid sequences for proteins.