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 ...

Do you have a colorful object that jumps out a little too much in your living room? Or a wall that weirdly fades into the background in your bedroom? Do you have all of the wrong colors grabbing ...

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 ...