Fisher and Race hypothesis
Chapter 3: 4. Luteal or secretory phase · ZOOLOGY · EN medium
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Rh factor involves three different pairs of alleles located on three different closely linked loci on the chromosome pair. This system is more commonly in use today, and uses the 'Cde' nomenclature. C or c C or c D or d D or d E or e E or e Fig. . Fischer and Race hypothesis In the above Fig. . , three pairs of Rh alleles (Cc, Dd and Ee) occur at different loci on homologous chromosome pair. The possible genotypes will be one C or c, one D or d, one E or e from each chromosome. For e.g. CDE/ cde; CdE/cDe; cde/cde; CDe/CdE etc., All genotypes carrying a dominant ‘D’ allele will produce Rh positive phenotype and double recessive genotype ‘dd’ will give rise to Rh negative phenotype.
📖 Class 12 Zoology English 2024 Edition www.tntextbooks.in · Page 55
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Rh factor involves three different pairs of alleles located on three different closely linked loci on the chromosome pair. This system is more commonly in use today, and uses the 'Cde' nomenclature. C or c C or c D or d D or d E or e E or e Fig. .
Fischer and Race hypothesis In the above Fig. . , three pairs of Rh alleles (Cc, Dd and Ee) occur at different loci on homologous chromosome pair. The possible genotypes will be one C or c, one D or d, one E or e from each chromosome.
For e.g. CDE/ cde; CdE/cDe; cde/cde; CDe/CdE etc., All genotypes carrying a dominant ‘D’ allele will produce Rh positive phenotype and double recessive genotype ‘dd’ will give rise to Rh negative phenotype. Wiener Hypothesis Wiener proposed the existence of eight alleles (R , R , R , R z , r, r , r , r y ) at a single Rh locus. All genotypes carrying a dominant
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