. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. INHERITANCE OF SEX AND RELATED PHENOMENA 203 Table XXXVI.—A Comparison or Cross-over Values from Normal and Non- DisjUNCTTONAL CtTLTURES IN Drosophila {Data from Bridgrn) A'-Y cultures AW Y cultures InorcuHe Loci Total Cross-over value Total Cross-over value Percentage increase WT 2,000 15,177 0,202 1,699 2,000 0,202 2,430 12,817 3,051 257 2,430 3,051 2().0 19 0 wv WF WB' TV VF Vermilion XYY Male XY
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. INHERITANCE OF SEX AND RELATED PHENOMENA 203 Table XXXVI.—A Comparison or Cross-over Values from Normal and Non- DisjUNCTTONAL CtTLTURES IN Drosophila {Data from Bridgrn) A'-Y cultures AW Y cultures InorcuHe Loci Total Cross-over value Total Cross-over value Percentage increase WT 2,000 15,177 0,202 1,699 2,000 0,202 2,430 12,817 3,051 257 2,430 3,051 2().0 19 0 wv WF WB' TV VF Vermilion XYY Male XY Synapsis 67% YY Synapsis 33% Reduction Sperm. Offspring Sable Male (1) Wild Type Female (2 ) Wild Type Female (3 ) Sable Male (4) Fig. 92.—Diagram of secondary noD-dLsjunction in the male. Four kinds of sperm are produced, but none of these lead to the production of phenotypic exceptionsin Fi. (After Bridges.) Digitized by Microsoft®. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Babcock, E. B. (Ernest Brown), b. 1877; Clausen, Roy Elwood, 1891-. New York, McGraw-Hill; [etc. , etc. ]
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