Biology, Pages 274-287Neil Campbell and Jane Reece's BIOLOGY remains unsurpassed as the most successful majors biology textbook in the world. This text has invited more than 4 million students into the study of this dynamic and essential discipline. |
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Page 35
... genes on the same chromosomes that is , to map genes . A genetic map based on recombination frequencies is specifically called a linkage map . Figure 15.7 ( p . 281 ) shows Sturtevant's linkage map of three genes : the body - color ( b ) ...
... genes on the same chromosomes that is , to map genes . A genetic map based on recombination frequencies is specifically called a linkage map . Figure 15.7 ( p . 281 ) shows Sturtevant's linkage map of three genes : the body - color ( b ) ...
Page 38
... genes are genetically unlinked ; alleles of such genes assort independently as if they were on different chromosomes . In fact , the genes for two of the pea characters that Mendel studied - seed color and flower color are now known to ...
... genes are genetically unlinked ; alleles of such genes assort independently as if they were on different chromosomes . In fact , the genes for two of the pea characters that Mendel studied - seed color and flower color are now known to ...
Page 39
... genes and a number of genes lying between them . Using recombination data , Sturtevant and his colleagues were able to map numerous Drosophila genes in linear arrays . They found that the genes clustered into four groups of linked genes ...
... genes and a number of genes lying between them . Using recombination data , Sturtevant and his colleagues were able to map numerous Drosophila genes in linear arrays . They found that the genes clustered into four groups of linked genes ...
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Common terms and phrases
Alterations of chromosome Barr body basis of recombination behavior of chromosomes body color characters Chromosomal Alterations chromosomal basis chromosome theory chromosomes during meiosis color and wing color blindness Concept Check crossover cytogenetic map deletion different chromosomes dihybrid dihybrid cross Drosophila embryonic eye color eyes in Drosophila F2 offspring Figure flies fly room frequency of recombination fruit fly gamete gamete receives Genes located genetic crosses geneticists genotype heterozygous homologous chromosomes homozygous humans inactivation independent assortment linkage map loci locus male fly mammal map units mated Mendel's laws Mendelian mitosis Morgan mutant allele nondisjunction nonhomologous chromosomes nonparental phenotypes nonsister chromatids normal ovum pair parental phenotypes phenotypic ratio physical basis polyploid protein Punnett square recessive allele recombinant chromosomes recombinant offspring recombination data recombination frequency recombination of linked red eyes segregation and independent sex chromosomes sex-linked disorder sex-linked trait specific gene Sturtevant tetraploid translocations white eyes wild-type allele X chromosome YyRr zygote