GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are many celled
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All are autotrophs
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Their cells have no nucleus
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Their cells lack cell walls
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Detailed explanation-1: -Bacteria are prokaryotes, lacking well-defined nuclei and membrane-bound organelles, and with chromosomes composed of a single closed DNA circle.
Detailed explanation-2: -Bacteria cells are prokaryotes, which means they do not have many of the organelles that eukaryotic cells have. Therefore, and most importantly, bacteria cells do not have a nucleus.
Detailed explanation-3: -Bacteria lack a membrane-bound nucleus and other internal structures and are therefore ranked among the unicellular life-forms called prokaryotes.
Detailed explanation-4: -Prokaryotic cells, such as bacteria, have a free-floating chromosome that is usually circular and is not enclosed in a nuclear membrane. Instead, the DNA simply exists in a region of the cell called the nucleoid.