Genetic variation within a population is measured according to the number of different alleles of all genes and the frequency with which they appear. Variation is high when there are many ...

Although Mendel's principle of independent assortment states that alleles of different genes will segregate independently into gametes, in reality, this is not always the case. Sometimes ...

Imagine your doctor calls you to discuss the results of your genetic testing. They tell you your results indicate you are ...

In this episode we’re going to talk about genetic inheritance. That means we’re talking about chromosomes, genes and alleles. So do you remember that cells have a nucleus? If not, go back and ...

Some characteristics are controlled by a single gene, such as fur colour in animals and red-green colour blindness in humans. However, most characteristics are caused by the interaction of many ...

This gene makes people sensitive to some bitter chemicals, such as phenylthiocarbamide (PTC) and propylthiouracil (PROP).

Have you ever wondered why some people cannot stand bitter foods like kale, broccoli, black coffee or dark chocolate, while ...

‘Given that obesity is a burgeoning challenge to society, a comprehensive knowledge of how genes and their alleles affect the ...

An international research team has discovered various mechanisms in asexual mites that generate genetic diversity and thus ensure survival.