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 nucleus gives the cell energy
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The nucleus protects the cell from outside things
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The nucleus controls what happens in the cell
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The nucleus does not have a job in the cell
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Detailed explanation-1: -By housing the cell’s genome, the nucleus serves both as the repository of genetic information and as the cell’s control center. DNA replication, transcription, and RNA processing all take place within the nucleus, with only the final stage of gene expression (translation) localized to the cytoplasm.
Detailed explanation-2: -Nuclear pores, small channels that span the nuclear envelope, let substances enter and exit the nucleus. Each pore is lined by a set of proteins, called the nuclear pore complex, that control what molecules can go in or out.
Detailed explanation-3: -control of the genetical information of the cell and thus the heredity characteristics of an organism, control of the protein and enzyme synthesis. control of cell division and cell growth. storage of DNA, RNA and ribosome. regulation of the transcription of the mRNA to protein. More items