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 36
... a map that locates on about midway between b and vg is consistent with these
data , as you can prove to yourself by drawing alternative maps . Sturtevant
expressed the distances between genes in map units , defining one map unit 36
280 .
... a map that locates on about midway between b and vg is consistent with these
data , as you can prove to yourself by drawing alternative maps . Sturtevant
expressed the distances between genes in map units , defining one map unit 36
280 .
Page 37
between genes in map units , defining one map unit as equivalent to a 1 %
recombination frequency . Today , map units often are called centimorgans in
honor of Morgan . In practice , the interpretation of recombination data is more ...
between genes in map units , defining one map unit as equivalent to a 1 %
recombination frequency . Today , map units often are called centimorgans in
honor of Morgan . In practice , the interpretation of recombination data is more ...
Page 40
The number at each gene locus indicates the number of map units between that
locus and the locus for aristae length ( left ) . Notice that more than one gene can
affect a given phenotypic characteristic , such as eye color . Also , note that in ...
The number at each gene locus indicates the number of map units between that
locus and the locus for aristae length ( left ) . Notice that more than one gene can
affect a given phenotypic characteristic , such as eye color . Also , note that in ...
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Common terms and phrases
active addition affected Alterations Alterations of chromosome aneuploid autosomes behavior of chromosomes called carried cell Chapter characters chromatid chromosomal basis chromosome number color and wing combinations Concept condition corresponding crosses crossover deletion depend determination different chromosomes dihybrid disorders distances Drosophila early embryo example experiments express eye color female fertilization Figure flies follow four fragment fruit fly gamete Genes located genetic half heterozygous homologous chromosomes humans inactivation independent assortment indicate individuals inheritance learned linkage map linked genes located loci locus male mated meiosis Mendel missing mitosis Morgan mutant nondisjunction normal observed occurs offspring pair parental patterns phenotype physical basis plant present produced protein receives recessive allele recombination frequency red eyes Researchers seed segregation sex chromosomes Sex-linked genes shows single specific specific gene structure Sturtevant Subsequent suggested tend term testcross tortoiseshell trait usually varieties white eyes X chromosome zygote