vestigial
refers to an organ or part (for example, the human appendix) which is greatly reduced from the original ancestral form and is no longer functional or is of reduced or altered function.
Vestigial structures provide a clue to the evolutionary history of a species because they are remnants of structures found in the ancestral species.
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..
DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..