释义 |
minus strand
minus strand[′mī·nəs ‚strand] (cell and molecular biology) A polynucleotide strand that is complementary to, and formed by transcription from, another specific polynucleotide (plus) strand, with which it produces the double-stranded (double-helix) ribonucleic acid. minus strand
rep·li·ca·tive form (RF), 1. an intermediate stage in the replication of either DNA or RNA viral genomes that is usually double stranded; 2. the altered, double-stranded form to which single-stranded coliphage DNA is converted after infection of a susceptible bacterium, formation of the complementary ("minus") strand being mediated by enzymes that were present in the bacterium before entrance of the viral ("plus") strand. minus strand A segment of DNA—produced by a single-stranded DNA virus infecting a eukaryotic host cell—which is complementary or antiparallel to the first strand. When such segments are derived from the virus itself, they are termed “plus” strands. |