A chromosome that fails to pair with another during the prophase stage of meiosis, and therefore does not exchange genetic information via crossing over. This situation usually occurs in polyploids with an odd chromosome compliment, such as triploids...
Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
