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词汇 Macrorestriction map
分类 英语词汇 英语翻译词典
释义

Macrorestriction map

中文百科

基因作图 Gene mapping

（重定向自Macrorestriction map）

基因作图（英文gene mapping）是一种遗传学作图，用来定位染色体中特定的DNA片段。是基因组研究的成果之一，主要分为以重组率为定位依据的遗传舆图，以及以DNA片段实际位置为依据的物理舆图，两这各有不同用途与优缺点。

英语百科

Gene mapping 基因作图

（重定向自Macrorestriction map）
Thomas Hunt Morgan's Drosophila melanogaster genetic linkage map. This was the first successful gene mapping work and provides important evidence for the Boveri–Sutton chromosome theory of inheritance. The map shows shows the relative positions of allelic characteristics on the second Drosophila chromosome. The distance between the genes (map units) are equal to the percentage of crossing-over events that occurs between different alleles. [image 1]
FISH metafásico: el cromosoma 2 se marca en amarillo. A la izquierda, DNA de orangután y, a la derecha, de humano. El patrón confirma que el cromosoma 2 humano deriva de la fusión de 2 cromosomas ancestrales.
Cartografía mediante RFLP. Se muestra un individuo homocigoto (A) y uno heterocigoto (B), así como sus respectivos Southern blots.

Gene mapping describes the methods used to identify the locus of a gene and the distances between genes.

The essence of all genome mapping is to place a collection of molecular markers onto their respective positions on the genome. Molecular markers come in all forms. Genes can be viewed as one special type of genetic markers in the construction of genome maps, and mapped the same way as any other markers.
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