A non-disjunction in meiotic anaphase occurring in either an egg or sperm might produce a human zygote with 45 chromosomes. A condition in which human contain 45 chromosomes instead of 46 chromosomes is called aneuploidy or abnormal chromosome number.
<h3>What is aneuploidy?</h3>
The occurrence of one or more extra or missing chromosomes leading to an unbalanced chromosome complement, or any chromosome number that is not an exact multiple of the haploid number (23). It is the presence of an abnormal number of chromosomes in a cell, for example a human cell having 45 or 47 chromosomes instead of the usual 46. An extra or missing chromosome is a common cause of some genetic disorders. The most common cause of aneuploidy happens during cell division when the chromosomes do not separate properly between the two cells.
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respitory systym and circulatory system because you need your lungs to breathe and the blood and heart to pump the oxygen into the blood. :))
<span>The right answer is: *some of the energy that had been stored as chemical energy is lost as heat.
Breaking down an organic molecule into smaller ones is part metabolism of all the living organisms. It is called catabolism.
Catabolism is the set of reactions of molecular degradation of the organism considered. It is the opposite of anabolism, all synthesis reactions. Catabolism and anabolism are the two components of metabolism.Catabolism reactions are oxidations (or dehydrogenations) and they are thermodynamically favorable, that is they are exergonic (yielding chemical energy, producing energy). A part of this energy is used for biological activities, like moving, building or binding molecules together. The other part is released as heat. (You can take an example in the real life like running, the energy lets you moving and produces by the way heat)</span>
