Question

One piece of evidence for the endosymbiotic theory is that the mitochondria and chloroplasts of eukaryotes _____.

self-replicate by binary fission, which is the way prokaryotes divide
have DNA similar to prokaryotes
synthesize proteins like prokaryotes
all of the above

Answer 1

"First, mitochondria and chloroplasts have a separate, simpler DNA from the nucleus DNA of a eukaryotic cell and these organelles' DNA resembles the DNA of prokaryotic cells.
Second, mitochondria and chloroplasts self-replicate by a cell division process similar to binary fission, which is the way prokaryotes divide.
Third, the way mitochondria and chloroplasts synthesize proteins within the eukaryote cell is more similar to prokaryotes than to eukaryotes.
And finally, there are living examples of prokaryotes, like cyanobacteria, that share similar features with both mitochondria and chloroplasts of eukaryotic cells."

Answer 2

All of the above.

Answer 3

@nidhi.k I don't think it would be all the above bc the first one isnt right bc it doesnt replicate by binary fission. It's similar to bianary fission

Answer 4

Yeah... true that they resemble binary fission but the other two are correct so it has to be all of the above

Answer 5

DNA RELEVANCE
YOUR CLUE IS THAT MITOCHONDRIAL DNA IS CIRCULAR

Answer 6

PLASMIDS ARE CIRCULAR AS WELL

Answer 7

http://www.ruf.rice.edu/~bioslabs/studies/mitochondria/mitorigin.html

Answer 8

@hwyl , the question says 'synthesize proteins like prokaryotes' and i saw online that they resemble bacteria, is that the same ?

Answer 9

Synthesis of proteins is quite similar between prokaryotes and eukaryotes. Eukaryotes are much more complex so it has more complicated mechanisms involved, but this does not refer to the endosybiotic theory. The question is about endosymbiotic theory, which refers to the attempt to explain the presence of secondary DNA in some eukaryotes such as plants and animals within the organelles mitochondria and chloroplast respectively.

Answer 10

@hwyl So, what you're saying is B?