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  2. Nucleic acid double helix - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid_double_helix

    The double-helix model of DNA structure was first published in the journal Nature by James Watson and Francis Crick in 1953, [6] (X,Y,Z coordinates in 1954 [7]) based on the work of Rosalind Franklin and her student Raymond Gosling, who took the crucial X-ray diffraction image of DNA labeled as "Photo 51", [8] [9] and Maurice Wilkins, Alexander Stokes, and Herbert Wilson, [10] and base-pairing ...

  3. Twinlab - Wikipedia

    en.wikipedia.org/wiki/Twinlab

    Twinlab was founded by David and Jean Blechman in 1968 and run by them and their sons – Neil, Brian, Ross, Steve and Dean. Using experience gained from over 20 years as a pharmaceutical salesman, David Blechman named the company for his two sets of twins and started marketing a liquid protein supplement from their family garage.

  4. Sense (molecular biology) - Wikipedia

    en.wikipedia.org/wiki/Sense_(molecular_biology)

    In molecular biology and genetics, the sense of a nucleic acid molecule, particularly of a strand of DNA or RNA, refers to the nature of the roles of the strand and its complement in specifying a sequence of amino acids. [citation needed] Depending on the context, sense may have slightly different meanings.

  5. Duplex sequencing - Wikipedia

    en.wikipedia.org/wiki/Duplex_sequencing

    These types of false-positive variants are filtered out by the duplex sequencing method since mutations need to be accurately matched in both strands of DNA to be validated as true mutations. Duplex sequencing can theoretically detect mutations with frequencies as low as 10 −8 compared to the 10 −2 rate of standard NGS methods. [1] [2] [10]

  6. Oscillatoria - Wikipedia

    en.wikipedia.org/wiki/Oscillatoria

    Oscillatoria are the subject of research into the natural production of butylated hydroxytoluene (BHT), [4] an antioxidant, food additive, and industrial chemical. Cyclic peptides called venturamides, which may have anti-malarial activity, have been isolated from bacteria in this genus. They are the first peptides with this activity to have ...

  7. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    We'll cover exactly how to play Strands, hints for today's spangram and all of the answers for Strands #335 on Saturday, February 1. Related: 16 Games Like Wordle To Give You Your Word Game Fix ...

  8. Meselson–Stahl experiment - Wikipedia

    en.wikipedia.org/wiki/Meselson–Stahl_experiment

    In the semiconservative hypothesis, proposed by Watson and Crick, the two strands of a DNA molecule separate during replication. Each strand then acts as a template for synthesis of a new strand. [2] The conservative hypothesis proposed that the entire DNA molecule acted as a template for the synthesis of an entirely new one.

  9. Topoisomerase - Wikipedia

    en.wikipedia.org/wiki/Topoisomerase

    The linking number (Lk) describes the number of times that the two single-strands of DNA cross each other in a closed circular DNA molecule. Relaxed DNA molecules have an intrinsic linking number (Lk 0) corresponding to the twisting of the two single-strands around each other in the double helix, approximately once per 10.5 base-pairs (Tw 0 ...

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