We can see if two genes are linked, and how tightly, by using data from genetic crosses to calculate the recombination frequency. By finding recombination frequencies for many gene …

Genes A, B, G, and H are located on the same chromosome. The distances between the genes are below: ... What is the most likely order of the genes on the chromosome?

Discover the fascinating world of genetic recombination and gene mapping. Learn how the distance between genes on a chromosome influences their likelihood to recombine.

Understand how multiple layers of gene regulation shape cell function and development. Explore DNA and chromatin modifications, transcriptional regulation, and the influence of transcription …

Zoom into the world of biomolecules as you explore the structure and function of proteins, nucleic acids, carbohydrates, lipids, ATP, and more! Explore some of the ways that these molecules …

How do restriction enzymes cut out human genes (e.g. for insulin) if they are found in prokaryotes? Also, is the insulin gene taken from a cell that isn’t in someone’s body?

Learn DNA DNA replication and RNA transcription and translation Alleles and genes

Gene therapy attempts to provide a normal copy of the gene to the cells of a patient’s body. For example, DNA cloning was used to build plasmids containing a normal version of the gene …

Determine if the chart shows an autosomal or sex-linked (usually X-linked) trait. For example, in X-linked recessive traits, males are much more commonly affected than females. In autosomal …

Variations on Mendel's laws (overview) Co-dominance and incomplete dominance Multiple alleles, incomplete dominance, and codominance Worked example: Punnett squares Polygenic …