Abstrakt
Genetics belongs to the most difficult biology topics with many misconceptions as it requires active connection of abstract terms on different levels (nucleus - cell - tissue - organism). We preliminarily mapped the most common genetics misconceptions of high school students in Czechia by a questionnaire.
A very common misconception was that allele as a specific section of gene. Chromosome was mostly described only by its structure whereas DNA and gene by its function.
It was fairly difficult for the students to describe the connection among three terms. We recommend to explicitly link all the different levels of organization, function and structure while teaching genetics.