What is the evidence of endosymbiotic theory?

What is the evidence of endosymbiotic theory?

Numerous lines of evidence exist, including that mitochondria and chloroplasts have their own circular DNA (prokaryotes also have circular DNA), mitochondria and chloroplasts have a double membrane (the inner membrane would have initially been the ingested prokaryote’s single membrane, and the outer membrane initially …

Who proposed the prokaryotic origin in mitochondria?

Complete answer: Altmann and Schimper in 1890 proposed that mitochondria and chloroplasts were once a free-living prokaryote.

What evidence led to the acceptance of Margulis Symbiotic hypothesis?

By the time Margulis proposed her theory, evidence for symbiosis theories was available from microscope studies of cells, electron microscopy, genetics, and molecular biology. Such evidence enabled Margulis to support her theories with experimental data.

Is endoplasmic reticulum prokaryotic or eukaryotic or both?

Endoplasmic reticulum, microtubules, and the Golgi apparatus are unique to eukaryotic cells, and will not be found in prokaryotes.

How did prokaryotes become eukaryotes?

According to the endosymbiotic theory, the first eukaryotic cells evolved from a symbiotic relationship between two or more prokaryotic cells. Smaller prokaryotic cells were engulfed by (or invaded) larger prokaryotic cells. They evolved into the mitochondria of eukaryotic cells.

How did Lynn Margulis prove endosymbiotic theory?

In the now generally accepted endosymbiotic theory, Margulis demonstrated that current plant cells resulted from the merging of separate ancestors, the chloroplast evolving from endosymbiotic cyanobacteria (autotrophic prokaryotes).

What was Lynn Margulis experiment?

Lynn Margulis was an eminent American evolutionary biologist. Her serial endosymbiotic theory (SET) of eukaryotic cell development overturned the modern concept of how life originated on earth. She argued that different types of bacteria, through “symbiogenesis”, formed more complicated single organisms.