SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cell membrane
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cell wall
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chloroplast
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nucleus
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Detailed explanation-1: -The nucleus (plural, nuclei) houses the cell’s genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.
Detailed explanation-2: -The nucleus contains genetic (hereditary) material. Genetic material, written in deoxyribonucleic acid (DNA), provides instructions for the cell. All cells contain the same DNA (the same set of instructions), but cell types are different because of different gene expression.
Detailed explanation-3: -The nucleolus contains DNA, RNA and proteins. It is a ribosome factory. Cells from other species often have multiple nucleoli.