A substance in photosensitive bacteria that is related to but different from chlorophyll of higher plants.A type of chlorophyll that is used by photosynthetic bacteria. Many of these bacteria also use bacterioviridin for photosynthetic purposes.
Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..
The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..
This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..