But an egg or sperm only has one. That one is chosen at random, through a process called meiosis. When meiosis messes up, you can end up with to many or too few chromosomes. One extra chromosome in a egg or sperm means three in the fertilized egg and so trisomy.
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The reservoirs are the atmosphere, the terrestrial biosphere (which usually includes freshwater systems and non-living organic material, such as soil carbon), the oceans (which includes dissolved inorganic carbon and living and non-living marine biota), and the sediments (which includes fossil fuels).
Explanation:
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A cross between a chicken and a turkey is called a "turkin." They are raised in farms in Wyoming. The "turkin" is an example of hybridization.
A chemical messenger is any compound that serves to transmit amessage. A chemical messenger may refer to: Hormone, Long rangechemical messenger. Neurotransmitter, communicates to adjacent cells.
