Which trait is considered to be a multifactorial trait? why? a. sickle cell anemia because according to the scitable article, some haplotypes can increase the severity of the symptoms suggesting a strong gene and gene interaction. b. huntington's disease because of anticipation which suggests that environment influences phenotype development. c. diabetes type 2 because cumulative effects of a gene network leads to the disease and the influence by the environment?

Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

Give an example of a trait that is controlled by more than one gene.

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?