Question

m Review Traditional gene mapping has been applied successfully to a variety of organisms including yeast, fungi, maize, and Drosophila. However, human gene mapping has only recently shared a similar spotlight. - Part A What factors have delayed the application of traditional gene-mapping techniques in humans? Select the four correct answers. In humans, the haploid number of chromosomes is relatively low. Many human genes show epistasis or incomplete dominance. Gene expression in humans strongly depends on the conditions of fetal development. Accurate medical records are often difficult to obtain. The human life cycle is relatively long. Ethical concerns raised by human subjects research. Humans have a pair of sex-determining chromosomes. In humans the haploid number of chromosomes is relatively high. Single human mating pair produces relatively few offspring.

Answer 1

in humans the haploid number of chromosme is relatively high

many human genes show epistasis or incomplete dominance

humans have a pair of sex determining chromosome

gene expression in human strongly depend on the condition of fetal developement