Categories
Physiology & Disease

The science behind twins

Do you have any family members or friends that are twins? If so, can you tell them apart, or do they look like two peas in a pod? Either way, it is fascinating to think that a woman can deliver more than one baby at a time. These cases are called multiple births. Twins are […]

Categories
Cell Biology

Meiosis

In organisms that follow sexual reproduction, gametes combine to form the zygote, the first cell of a new organism. We will discuss the familiar case of humans, but the same applies to other organisms as well. The two gametes, sperm and egg, are haploid cells, meaning they contain half the chromosome number of somatic cells. […]

Categories
Cell Biology

Types of cell division

Have you ever wondered how the organs of an embryo develop inside the womb, how the immune system heals infections, or how a tree becomes taller with time? All of the organisms survive, grow, and reproduce by creating new cells. But how do new cells occur? No matter the organism or the type of cells, […]