The terms dominant and recessive describe the inheritance patterns of certain traits. That is, they describe how likely it is for a certain phenotype to pass from parent to offspring.
The central dogma of molecular biology explains that DNA codes for RNA, which codes for proteins. But RNA does more than just build proteins. RNA has many jobs in the cell, including jobs that have been traditionally associated with DNA and proteins.
Every organism has a unique body pattern. Although specialized body structures, such as arms and legs, may be similar in makeup (both are made of muscle and bone), their shapes and details are different. While an embryo grows, arms and legs develop differently due to the actions of homeotic genes, which specify how structures develop in different segments of the body.
A huge study of Icelanders suggests that older men pass on four times as many new mutations to their kids than women.
From the first cells to the dawn of our species, Michael Le Page takes a whirlwind tour through 3 billion years of evolution. To access this article login with email: firstname.lastname@example.org and password 22aggs.
The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so how can one twin end up with a genetic disorder while the other twin does not? Robin Ball explains how the secret lies in X chromosome inactivation.
Information is Beautiful Studio take a visual approach to exploring the complex relationships between our health, genes, lifestyle and environment.