Why are some genes dominant? Such as those for brown eyes over blue eyes, or so I am led to believe. Or do they actually blend in some way? Here's what science has to say: In the 19th century, ...

Your genes code for all your traits. Some genes are dominant and expressed if you receive a copy from one parent. Others are recessive and only apparent if you receive a copy from both parents. Genes ...

Populations live in rapidly changing environments—droughts come and go, food sources change, human activities reshape habitats. For scientists, this raises a fundamental puzzle: How do populations ...

As a group, carriers of recessive disorders are slightly less healthy and have a reduced chance of having offspring. This disadvantage is greatest for carriers of a recessive gene for intellectual ...

Biology professors and students use tomatoes from campus garden to teach high schools students about genetic diversity. Students learn about dominant and recessive genes and the genetic influence on ...

Rare genetic traits are features that are uncommon within the general population. They can lead to different observable features or to rare physical abilities. Rare genetic traits are typically ...

"I will go up to the six-fingered man and say, 'Hello. My name is Inigo Montoya. You killed my father. Prepare to die.'" - Inigo Montoya, "The Princess Bride" If the six-fingered man had survived his ...

Genetics play a strong role in nearsightedness. It is not the only factor, though. Looking at nearby objects for long periods of time and a lack of outdoor exposure can also contribute.