·    Water Discussion Topic  One student looked at the relationship between photosynthesis and respiration and thought that plants could survive without animals.  How are carbon dioxide and oxygen used by plants and animals? Does this have an impact on whether plants need animals?  Are there any circumstances other than metabolism […]

In common wheat kernel color varies from red to white, the genes for kernel color acting additively. Phenotypic classification of segregating progenies between red and white kernel varieties is possible. a) A cross is made between a dark red kernel R1R1R2R2 and a white kernel r1r1r2r2 variety. Give the genotype […]

Three Questions: The uniform arrangement of the backbone carbonyl oxygens and amide nitrogens in an ? helix gives the helix a net dipole, so that it carries a partial positive charge at the amino end and a partial negative charge at the carboxyl end. Where would you expect the ends of […]

In snapdragons, red flower color (R) is incompletely dominant over white flower color (r); the heterozygotes produce pink flowers. A red snapdragon is crossed with a white snapdragon, and the F1 are intercrossed to produce the F2. (a) Give the genotypes and phenotypes of the F1 and F2, along with […]