Three genes in fruit flies affect a particular trait, and one dominant allele of each gene is necessary to get a wild-type phenotype. a. what phenotypic ratios would you predict among the progeny if you crossed triply heterozygous flies? b. you cross a particular wild-type male in succession with three tester strains. in the cross with one tester strain (aa bb cc), only 1/4 of the progeny are wild type. in the crosses involving the other two tester strains (aa bb cc and aa bb co, half of the progeny are wild type. what is the genotype of the wild-type male?

the correct answer is c   with the systems

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called