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  2. CRISPR gene editing - Wikipedia

    en.wikipedia.org/wiki/CRISPR_gene_editing

    CRISPR gene editing (CRISPR, pronounced / ˈ k r ɪ s p ə r / (crisper), refers to a clustered regularly interspaced short palindromic repeats") is a genetic engineering technique in molecular biology by which the genomes of living organisms may be modified.

  3. CRISPR - Wikipedia

    en.wikipedia.org/wiki/CRISPR

    Cas9 (or "CRISPR-associated protein 9") is an enzyme that uses CRISPR sequences as a guide to recognize and open up specific strands of DNA that are complementary to the CRISPR sequence. Cas9 enzymes together with CRISPR sequences form the basis of a technology known as CRISPR-Cas9 that can be used to edit genes within living organisms.

  4. Gene therapy - Wikipedia

    en.wikipedia.org/wiki/Gene_therapy

    This is one of the first studies of a CRISPR-based in vivo human gene editing therapy, where the editing takes place inside the human body. [266] The first injection of the CRISPR-Cas System was confirmed in March 2020. [267] Exagamglogene autotemcel, a CRISPR-based human gene editing therapy, was used for sickle cell and thalassemia in ...

  5. Cas12a - Wikipedia

    en.wikipedia.org/wiki/Cas12a

    The CRISPR-Cas12a system consist of a Cas12a enzyme and a guide RNA that finds and positions the complex at the correct spot on the double helix to cleave target DNA. CRISPR-Cas12a systems activity has three stages: [3] Adaptation: Cas1 and Cas2 proteins facilitate the adaptation of small fragments of DNA into the CRISPR array.

  6. CRISPR-associated transposons - Wikipedia

    en.wikipedia.org/wiki/CRISPR-associated_transposons

    CRISPR-associated transposons or CASTs are mobile genetic elements that have evolved to make use of minimal CRISPR systems for RNA-guided transposition of their DNA. [1] Unlike traditional CRISPR systems that contain interference mechanisms to degrade targeted DNA, CASTs lack proteins and/or protein domains responsible for DNA cleavage. [ 2 ]

  7. Intermittent fasting may slow hair growth, study finds - AOL

    www.aol.com/intermittent-fasting-may-slow-hair...

    Intermittent fasting resulted in a hair growth speed reduction of 18% in adults who practiced the diet compared to controls who were eating a regular diet, a new study found.

  8. Ariana Grande dyes her hair, Emma Stone debuts pixie ... - AOL

    www.aol.com/ariana-grande-ditches-wicked-blonde...

    Whether Grande's new hair color is here to stay is unclear. The icy blonde of Galinda will have to return eventually (at least on the silver screen) as Erivo and Grande reunite for part two of the ...

  9. CRISPR activation - Wikipedia

    en.wikipedia.org/wiki/CRISPR_activation

    See: Guide RNA, CRISPR. Complementary base pairing between the sgRNA and genomic DNA allows targeting of Cas9 or dCas9. A small guide RNA (sgRNA), or gRNA is an RNA with around 20 nucleotides used to direct Cas9 or dCas9 to their targets. gRNAs contain two major regions of importance for CRISPR systems: the scaffold and spacer regions.

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