INTRODUCTION
CELL STRUCTURE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Prokayrotes evolved from eukaryotes
|
|
|
Eukaryotes evolved from prokaryotes
|
|
|
Eukaryotes are unrelated to prokaryotes
|
|
|
Prokaryotes are more complex than eukaryotes
|
Detailed explanation-1: -Bacteria, a prokaryote, has circular DNA, as do mitochondria and chloroplasts. This provides support for the Endosymbiotic Theory, which states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote).
Detailed explanation-2: -Similarities between the DNA of mitochondria and chloroplasts and the DNA of bacteria are an important line of evidence supporting the endosymbiont theory, which suggests that mitochondria and chloroplasts originated as free-living prokaryotic cells.
Detailed explanation-3: -Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear. Mitochondria and chloroplasts have their own ribosomes which have 30S and 50S subunits, not 40S and 60S.