Is it the difficulty of a task that determines whether or not students are stressed when working on it? Biologists working in biology didactics set out to find out the answers; to this end, the team ...

Objective: Analyze the information contained in homozygous haplotypes detected with high density genotyping. Methods: We analyze the genotypes of ⁓2,500 markers on chr 22 in 12 population samples, ...