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How are mitochondria replicated?

Started by Deepa100
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Deepa100

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I understand the cell division but don't quite understand how the mitochondria get replicated. Can some one she some light?
 
I don't think you need to know the specifics, but mitochondria have their own circular DNA and ribosomes so they can make proteins and obviously encode for genes.

Hope it heped
 
what you should be familiar with is the theory that mitochondria were phagocytosed by some eukaryote a long time ago. This is more or less referred to as the endosymbiont theory.
what is key to understand is that mitochondria were considered to be a separate prokaryote that was swallowed by a eukaryote. Thus it retained many of its prokaryotic characteristics such as dividing by transverse binary fission. It did this by virtue of having its own circular DNA called a plasmid.
 
Sorry about the...vague response.
Anyways. Think of Mitochondria EXACTLY as you think of Bacteria. They both have so many similar characteristics that it's a safe bet to use this thinking for the MCAT. They both use binary fission for division. The MCAT will not test you on any discrete/advanced concepts of Mitochondria beyond this and knowing about energy production.

Just remember that Mitochondria - binary fission. Endosymbiosis. Dinitrophenol <--kidding.
 
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Sorry about the...vague response.
Anyways. Think of Mitochondria EXACTLY as you think of Bacteria. They both have so many similar characteristics that it's a safe bet to use this thinking for the MCAT. They both use binary fission for division. The MCAT will not test you on any discrete/advanced concepts of Mitochondria beyond this and knowing about energy production.

Just remember that Mitochondria - binary fission. Endosymbiosis. Dinitrophenol <--kidding.

Thanks!
 
just a fun fact
mtDNA is almost always inherted from maternal side because the mitochondria from the sperm is degraded during fertilization.