What do post-Mendelian genetic concepts such as quantitative variation, polygenic traits, and pleiotropy suggest about the possible future course of genetic research?
a. Geneticists need to study how new gene combinations can be assembled on recombinant chromosomes to cure genetic diseases.
b. Geneticists need to develop better ways to examine traits with different and non-overlapping phenotypic variants.
c. Geneticists need to study how genes work together to produce complex phenotypes in the context of complex environments.
d. Geneticists need to need to develop better ways to measure genetic heritability between different ethnic populations.