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Mitochondria and chloroplasts used to be free-living. They used to be prokaryotes, but they got enveloped by other prokaryotes and their membrane became a double membrane because the first one stayed and the second one came from it being enveloped. Their DNA is also similar to prokaryote DNA. Their original cell membrane is also similar to a prokaryote's cell membrane.
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Which two organelles contain their own DNA and were probably once free-living organisms?
The two organelles that contain their own DNA and are thought to have originated from free-living organisms are mitochondria and chloroplasts. Both of these organelles have their own circular DNA, similar to bacterial DNA, and they replicate independently of the cell's nuclear DNA. This endosymbiotic theory suggests that they were once separate prokaryotic organisms that entered into a symbiotic relationship with ancestral eukaryotic cells.
What 2 dna-containing organelles support Margulis theory of endosymbiosis?
The two DNA-containing organelles that support Margulis' theory of endosymbiosis are mitochondria and chloroplasts. These organelles contain their own DNA, which is separate from the nuclear DNA of the cell, and share some similarities with bacteria, indicating that they were once free-living prokaryotic organisms that were engulfed by a host cell and formed a symbiotic relationship.
What part of the cell theory did Lynn margulis contribute to?
She concluded that some organelles found in eukaryotes were once free-living prokaryotes.
What is the evolutionary hypothesis that some organelles are remnants of prokaryotic cells?
The endosymbiotic theory proposes that some organelles, such as mitochondria and chloroplasts, were once free-living prokaryotic cells that were engulfed by a host cell through endocytosis. Over time, these prokaryotic cells formed a symbiotic relationship with the host cell, eventually evolving into permanent organelles within the eukaryotic cell.
What organelle may survive and reproduce independently of a cell?
Mitochondria are organelles that were once free-living bacteria. They can survive and reproduce independently in certain conditions, suggesting they have retained some autonomy from the host cell.
Which organelles were once free-living protists that got eaten but not digested by larger cells?
chloroplasts; mitochondria
How is cell evidence for evolution?
the presence of organelles like the lysosome and the mitochondrion which both have double membranes. this suggests that these organelles were once free-living organisms that were incorporated into a larger organism in what could be called a mutual symbiosis.
Two organelles that are believed to be descendants of unicellular bacteria are?
Two organelles that are believed to be descendants of unicellular bacteria are mitochondria and chloroplasts. The endosymbiotic theory suggests that these organelles were once free-living bacteria that were engulfed by ancestral eukaryotic cells and formed a symbiotic relationship.
What 2 dna-containing organelles support Margulis theory of endosymbiosis?
The two DNA-containing organelles that support Margulis' theory of endosymbiosis are mitochondria and chloroplasts. These organelles contain their own DNA, which is separate from the nuclear DNA of the cell, and share some similarities with bacteria, indicating that they were once free-living prokaryotic organisms that were engulfed by a host cell and formed a symbiotic relationship.
What part of the cell theory did Lynn margulis contribute to?
She concluded that some organelles found in eukaryotes were once free-living prokaryotes.
How do you get portal for free if you already own portal 2?
Once in a while, Valve will have portal be free for a while.
What is the evolutionary hypothesis that some organelles are remnants of prokaryotic cells?
The endosymbiotic theory proposes that some organelles, such as mitochondria and chloroplasts, were once free-living prokaryotic cells that were engulfed by a host cell through endocytosis. Over time, these prokaryotic cells formed a symbiotic relationship with the host cell, eventually evolving into permanent organelles within the eukaryotic cell.
Does Just Cause 2 have free roam?
Once you have completed the first 2 missions on Just Cause 2, you can do what you want. So yes, Just Cause 2 does have free roam.
Is there free play in saints row 2?
yeah once you beat the game
Who said that organelles where once cells themselves?
Lynn Marguils and she said it in 1970.
What organelle may survive and reproduce independently of a cell?
Mitochondria are organelles that were once free-living bacteria. They can survive and reproduce independently in certain conditions, suggesting they have retained some autonomy from the host cell.
Do you have to pay for Starcraft 2 after you buy it?
No, once you have a CD/License Key its free to play.
