Genetics & Evolution

Genetic diversity is the variation in the characteristics inherited from the parent organisms in a population of a specific species. Genetic diversity can come about through a number of ways: mutations, sexual reproduction, migration, and population size.

Prior to the discovery of blood groups, blood transfusions were often deadly. Physicians attempted the use of milk and animal blood as an alternative to human blood, but met with limited success: the discovery of blood types allowed modern transfusions to safely take place. Blood typing, blood groups around the world, and the genetics of blood types are discussed in this article.

Several external factors affect the way we perceive eye color. This article discusses how environmental factors can impact hazel eyes, making it easy to mistake them for green eyes.

Most commonly, you see brown or blue eyes but some people, whether it be luck or a medical condition, wind up with really cool and rare eye colors.

If you have red hair or blue eyes, then you're a mutant. There's nothing you can do about it except read this page to find out why nature selected you for mutantdom.

Sickle cell disease is painful for sufferers and can sometimes be dangerous. Genome editing may one day correct the mutation that causes the disorder.

According to genetics, it is extremely rare, but still possible, for a black person to have blue eyes. This article will cover the science behind black people with blue eyes, and will provide some well-known examples.

We know that everyone's DNA is unique, but do you know exactly how forensic scientists tell people apart from their DNA? In this article, we explore the concept of microsatellites (or STRs) and apply this knowledge to tackle an exciting mock case example with riveting twists and turns.

Hair color is primarily genetic, and red hair is caused by mutations in the MC1R gene. The gene for red hair also causes an increased sensitivity to sunlight and a reduced sensitivity to anesthesia. Contrary to internet rumors, redheads are not going extinct! Famous redheads include Queen Elizabeth I and Malcolm X.

They live in a rainbow world the rest of us can never see. Thanks to an eye mutation, an incredibly small percentage of women view their day with supervision, seeing colour where the rest of us see normal shades or even monochrome.

The Y chromosome contains haplogroups which allow people to trace their family history, genes which control male development, and may actually be disappearing.

The discovery of a single tooth led to the belief in an ape-like creature had once roamed the plains of the New World.

About 10 percent of the population is left-handed and experts are unsure exactly why this is so.

When I meet someone for the first time, I always notice their eyes. Here are some cool facts about people with green eyes.

Interested in genealogy? Check out this list of ten facts you may not have known about your DNA and biological connections to ancestors!

Did you know that up to 2% of genes in the human population are actually from Neanderthals? Mood disorders and sleeping patterns are among the traits influenced by these genes.