INTRODUCTION TO MICROSCOPY CELL BIOLOGY
DIFFERENTIATED CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Each cell has ____ of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells.
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two copies
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multiple copies
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an identical copy
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different copies
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Explanation:
Detailed explanation-1: -Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual. A gene is the basic unit of heredity in a living organism.
Detailed explanation-2: -Chromatin structure plays an important role in controlling gene expression and replication. The packaging of DNA into nucleosomes forms a ‘closed’ structure that is not very accessible to enzymes that perform replication, transcription, and DNA repair.
There is 1 question to complete.