. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. Fig. 45.âDiagrammatic representation of reduction divisions in an Fi snapdragon of tiie genetic constitution ZzRrli. â hybrids the members of the three pairs of chromosomes separate independ- ently so that eight different kinds of gametes are formed. In Fig. 45 are shown diagrammatically the reduction divisions in an Fi snapdragon of the genetic constitution ZzRrli. Since any one of these types of re- duction has a good as chance of occurrence as any other one, the eight kinds of gametes are produc
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. Fig. 45.âDiagrammatic representation of reduction divisions in an Fi snapdragon of tiie genetic constitution ZzRrli. â hybrids the members of the three pairs of chromosomes separate independ- ently so that eight different kinds of gametes are formed. In Fig. 45 are shown diagrammatically the reduction divisions in an Fi snapdragon of the genetic constitution ZzRrli. Since any one of these types of re- duction has a good as chance of occurrence as any other one, the eight kinds of gametes are produced in substantially equal numbers. When such a plant is self-fertilized there are 64 possible combinations as shown in the checkerboard in Fig. 46. In the description of phenotypes in this checkerboard certain differences between homozygous and heterozygous forms have been disregarded. This is true particularly for the Rr individuals as contrasted with the homozygous RR individuals. The 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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Keywords: ., bookcentury1900, bookdecade1910, booksu, booksubjectplantbreeding
