PHOTOSYNTHESIS
THE CHLOROPLAST
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Chloroplasts & mitochondria have DNA similar to prokaryotes
|
|
|
Chloroplasts & mitochondria reproduce by binary fission similar to prokaryotes
|
|
|
Chloroplasts & mitochondria contain 70s ribosomes similar to prokaryotes
|
|
|
Chloroplasts & mitochondria move around the cell freely
|
|
|
Chloroplasts & mitochondria can survive independently outside of the eukaryotic cell
|
Detailed explanation-1: -Therefore, the correct option is b. The chromosome similarity of organelles (mitochondria and chloroplast) does not support the endosymbiotic theory and having non-coding DNA.
Detailed explanation-2: -"The exterior structure similar to bacterial cell walls” IS NOT an evidence in favour of the endosymbiotic theory.
Detailed explanation-3: -In addition to the lack of histones, mitochondria and chloroplasts have circular, single stranded DNA. Single stranded, circular DNA is found exclusively in prokaryotes. This evidence supports the endosymbiosis theory because these characteristics would allow the mitochondria and chloroplasts to survive on their own.
Detailed explanation-4: -Explanation: Endosymbiotic theory had supported the fact that mitochondria have evolved in eukaryotes by the symbiotic association of bacteria. Mitochondria and bacteria differ in size is incorrect as the size of mitochondria and bacteria is approximately same.