Can someone describe the meaning of this sentence about DNA please?

Question

Mitochondria also contain DNA, above and beyond the DNA found in the nucleus of the cell.
Does this sentence locate the DNA in mitochondria?

Thanks...

Explain more please, ı cannot understand...

Answer 1

No. This sentence is quite accurate. There is the genomic DNA that occurs in the nucleus, but there is another smaller set of DNA that is unique that occurs in the mitochondria. This subset of genetic material is so unique that it can be used by science for very interesting experiments. This material is conserved in the mitochondria (doesn't change) and it is passed on maternally. This means that your mitochondrial DNA can be evaluated and determine your very ancient ancestry. This was done when a very old body was found in a peat bog in the British Isles. Students at an area school were tested and determined that one student was a direct descendent of that body after 5000 years. Mitochondrial DNA is also being used to determine migratory routes of humanity as it dispersed across the globe. Mitochondrial DNA is pretty amazing stuff.

Answer 2

All cells have DNA in their nucleus that control, well, everything. However, mitochondria (and chloroplasts, for that matter) are unique organelles in that they contain their own DNA, which controls when the mitochondrion replicate, how long they live, etc. So, no, your cellular DNA is contained within the nucleus, just like every other living organism, but a separate set of DNA that strictly "belongs", so to speak, to the mitochondrion also exists in each mitochondrion.

This fact is probably due to endosymbiotic theory, which states that two or more different types of prokaryotic cells formed symbiotic relationships early in evolution to form eukaryotic cells. What probably happened was that both of the symbiotes retained their genetic information because it gave the newly formed organism a decided advantage over prokaryotes.

Answer 3

This sentence means that mitochondria contains its own DNA inside it which is different from the DNA in the nucleus of the cell.

Answer 4

Actually, every cell in our bodies carries DNA in two places, in the nucleus and in numerous mitochondria. Nuclear DNA contains genetic information that originated with both our parents, 50% from our father's sperm and 50% from our mother's ovum (egg). Thus, a random half of our nuclear DNA is combined with a random half of our spouse's nuclear DNA every time a baby is conceived. Mitochondrial DNA is inherited 100% from our mothers and remains essentially unchanged (except for occasional mutations) for thousands of years. Nuclear DNA describes our heritable physical traits, such as eye color, body build, height and weight. Mitochondrial DNA describes how our metabolism works at a cellular level.

Answer 5

Mitochondria, are the power conversion cells (inherited from the female only I seem to remember) and are separate from the regular DNA (male and female mix of genes)

Answer 6

It means the mitochondria are located outside the nucleus.

Answer 7

yes,some micro organells have their own DNA.

Answer 8

I have no idea