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Chromosomal crossover
Homologous recombination is the process by which two chromosomes, paired up during prophase 1 of meiosis, exchange some distal portion of their DNA. Crossover occurs when two chromosomes, normally ... > more -
Zebra mussel
The Zebra mussel (Dreissena polymorpha) is a bivalve mussel native to freshwater lakes of southeast Russia. Zebra mussels are currently causing serious problems in North America and Sweden, where ... > more -
Visual system
The visual system is the part of the nervous system which allows organisms to see. It interprets the information from visible light to build a representation of the world surrounding the body. The ... > more -
Comparative psychology
Comparative psychology, taken in its most usual, broad sense, refers to the study of the behavior and mental life of animals other than human beings. It is synonymous with animal psychology, but ... > more
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