INTRODUCTION TO MICROSCOPY CELL BIOLOGY
NUCLEUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The DNA is found outside the chromosomes, floating around inside the nucleus.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Detailed explanation-2: -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. Prokaryotic cells only have a small range of organelles, generally only a plasma membrane and ribosomes.
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