本实验通过对黑腹果蝇同一染色体上3个非等位基因的交换行为来验证基因在染

本实验通过对黑腹果蝇同一染色体上3个非等位基因的交换行为来验证基因在染色体上呈直线排列，并通过测定重组值来进行遗传作图。果蝇的翅形，刚毛，眼色性状为3个非等位基因，均位于X染色体上。先用纯合的野生型果蝇（+ + +，长翅、直刚毛、红眼）与纯合的三隐性果蝇（m sn3 w，白眼、短翅、卷刚毛）杂交制成三因子杂种，再把雌性杂种与三隐性个体测交，在测交后代中由于基因间的交换可得到8种不同的表型，经过数据处理，绘制出遗传学图，从而测出3个连锁基因在染色体上的距离和顺序。基因图距是通过重组值测定而得到的，基因间距离越远，期间发生交换的可能性越大，重组值的大小可以用来表示基因间距离的长短。

結果 (英文) 1:

Through this experiment of Drosophila melanogaster 3 non-allelic genes on the same chromosome Exchange to verify that the genes on the chromosomes are arranged in a straight line, and by measuring the recombination values for genetic mapping. Drosophila wing-shaped setae, eye character for 3 non-allelic genes are located on the x chromosome. First with pure collection of wild type flies (+ + +, long wing, and straight bristles, and red-eye) and pure collection of three hidden flies (m SN3 w, eye, and short wing, and volume bristles) hybrid made three factor hybrid, again put female Hybrid and three hidden individual measuring make, in measuring make offspring in the due to gene between of Exchange can get 8 species different of table type, after data processing, draws out genetics figure, to measured 3 a chain gene in chromosome Shang of distance and order. Gene derived from a figure from the reorganization of value determination, genetic distances between the farther, more likely to occur during the Exchange, reorganization of values can be used to represent the length of the intergenic distances.

結果 (英文) 2:

Through this experiment on the same chromosome of Drosophila melanogaster three non-allelic exchange to verify the behavior of genes on chromosomes arranged in a line, and by measuring the value of recombinant genetic mapping. Drosophila wing-shaped bristles, wink traits of three non-allelic, are located on the X chromosome. First with the homozygous wild-type flies (+ + +, long-winged, straight bristles, red-eye) and homozygous recessive three Drosophila (m sn3 w, supercilious, short wings, volumes setae) made three-factor cross hybrids , then the female hybrid with a double recessive individual test cross, in the cross-progeny test available due to exchange genes between 8 different phenotypes, through data processing, to map out genetic map, which measured 3 chain genes distance and sequence on the chromosome. By recombinant genetic map distance is measured and the value obtained, the greater the distance between genes, the greater the possibility of the exchange period, the value of the size of the recombinant gene can be used to indicate the distance between the length.

結果 (英文) 3:

In this study, the exchange behavior of 3 non allelic genes on the same chromosome of Drosophila Drosophila was used to verify that the gene is in a straight line. Wing shape, Drosophila bristle, wink traits for 3 nonallelic genes, were located on chromosome X. First with the wild type Drosophila homozygous (+ + +, long wings, straight bristles, red eye) and three recessive homozygous flies (m sn3 W, his eyes, short wings, Juan Gangmao made three factor) hybrid hybrids, the hybrids and three recessive female individual testcrossing in testcross progeny due to gene the exchange can get 8 different phenotypes, after data processing, draw out the genetic map, so as to measure the distance and the sequence of the 3 chain gene on chromosome. Genetic map distance is determined by the recombination value, the farther the distance between genes, the greater the possibility of exchange, the size of the value of the recombinant gene can be used to indicate the length of the distance between genes.