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Unformatted text preview: f. Homozygous- situation that has two copies of the same allele (RR or ww) g. Heterozygous- situation of having one copy each of different alleles (Rw) h. Dominant allele- expressed phenotypically in both homozygotes and heterozygotes i. Recessive allele- expressed phenotypically in only homozygotes B. Principle of Independent Assortment a. Segregation of one pair of genes does not influence the segregation of the other pair of genes i. Ex// seed texture: R or w; Stem length: T or s ii. RwTs x RwTs RT Rs wT ws RT RRT T RRTs RwTT RwTs ws RsTw Rwss wwTs wwss wT RwT RwTs wwTT wwTs T Rs RRTs RRss RwTs Rwss Geno Pheno RRTT (1) R,T (1) RRTs (2) R,T (2) 12 round, 4 wrinkled RwTT (2) R, T(2) 3:1 (same as RwxRw) RwTs (4) R,T (4) RRss(1) R,s (1) Rwss (2) R,s (3) wwTT(1) w,T (1) wwTs (2) w,T (2) wwss (1) w,s (1) There is more genotypic variation in a species than phenotypic variation...
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This note was uploaded on 06/14/2009 for the course ANTH 1001 taught by Professor Tague during the Spring '07 term at LSU.
- Spring '07