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Sequence coverage (or depth) is the number of unique reads that include a given nucleotide in the reconstructed sequence. [1] [2] Deep sequencing refers to the general concept of aiming for high number of unique reads of each region of a sequence. [3] Physical coverage, the cumulative length of reads or read pairs expressed as a multiple of ...
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]
Long-read sequencing captures the full transcript and thus minimizes many of issues in estimating isoform abundance, like ambiguous read mapping. For short-read RNA-Seq, there are multiple methods to detect alternative splicing that can be classified into three main groups: [119] [91] [120]
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]
In 1984, David C. Schwartz and Charles Cantor published the first successful application of alternating electric fields for the separation of large DNA molecules. [3] [4] This technique, which they named PFGE, resulted in the development of several variations, including Orthogonal Field Alternation Gel Electrophoresis (OFAGE), Transverse Alternating Field Electrophoresis (TAFE), Field ...
In fact, a gallon of 2% has more than half the fat as a gallon of whole milk. The FDA requires whole milk to have at least 3.25$ fat by weight. But the amount of fat can range from 3.25$ to 5 ...
The minimal genome corresponds to small genome sizes, as bacterial genome size correlates with the number of protein-coding genes, typically one gene per kilobase. [1] Mycoplasma genitalium , with a 580 kb genome and 482 protein-coding genes, is a key model for minimal genomes.
A nuclear run-on assay is conducted to identify the genes that are being transcribed at a certain time point. Approximately one million cell nuclei are isolated and incubated with labeled nucleotides, and genes in the process of being transcribed are detected by hybridization of extracted RNA to gene specific probes on a blot. [1]