Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
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