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exsiccate    
vt. 使干燥

使乾燥

exsiccate
v 1: lose water or moisture; "In the desert, you get dehydrated
very quickly" [synonym: {exsiccate}, {dehydrate}, {dry up},
{desiccate}] [ant: {hydrate}]


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  • Stages of transcription: initiation, elongation . . . - Khan Academy
    The region of opened-up DNA is called a transcription bubble Transcription uses one of the two exposed DNA strands as a template; this strand is called the template strand The RNA product is complementary to the template strand and is almost identical to the other DNA strand, called the nontemplate (or coding) strand
  • DNA structure and replication review (article) | Khan Academy
    DNA replication is semi-conservative This means that each of the two strands in double-stranded DNA acts as a template to produce two new strands Replication relies on complementary base pairing, that is the principle explained by Chargaff's rules: adenine (A) always bonds with thymine (T) and cytosine (C) always bonds with guanine (G)
  • Transcription: an overview of DNA transcription (article . . . - Khan Academy
    RNA polymerase The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA Specifically, RNA polymerase builds an RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand
  • DNA replication (article) | Khan Academy
    DNA replication is semi-conservative During DNA replication, the two strands of the DNA double helix are unwound and separated by enzymes Each strand then serves as a template, or guide, for synthesizing a new, complementary strand
  • Molecular mechanism of DNA replication - Khan Academy
    DNA replication is semiconservative Each strand in the double helix acts as a template for synthesis of a new, complementary strand
  • Transcription: an overview of DNA transcription (article) | Khan Academy
    The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA Specifically, RNA polymerase builds an RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand
  • Telomeres and telomerase (article) | Khan Academy
    In general, DNA polymerases can't start a new strand of DNA from scratch, even if they are given a template That's because the polymerization reaction they catalyze involves attaching the phosphate group of an incoming nucleotide to the hydroxyl group of an existing nucleotide (one that's already part of the strand), as shown at right
  • The genetic code codon table (article) | Khan Academy
    Actually, the mRNA strand is coded from the template strand of the DNA which runs from 3' to 5' end The coding strand is the other strand of DNA helix other than the template strand that runs from 5' to 3' end and is parallel to the mRNA strand
  • DNA transcription and mRNA processing (video) | Khan Academy
    Transcription involves rewriting genetic information from DNA to mRNA, with RNA polymerase playing a crucial role In eukaryotic cells, DNA to mRNA transcription occurs within the nucleus, producing pre-mRNA This pre-mRNA undergoes processing, including the addition of a 5' cap, a poly-A tail, and splicing out introns, resulting in mature mRNA, which then leaves the nucleus for protein





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