DNA is not present in
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DNA is mainly present in the nucleus, however, extranuclear DNA is also found in certain organelles.
- nucleus
- mitochondria
- chloroplast
ribosomes
The Correct Option is D
Solution and Explanation
A ribosome is a small spherical body within a living cell that is the site of protein synthesis. It does not have DNA.
- DNA is mainly present in the nucleus, however, extranuclear DNA is also found in certain organelles.
- Mitochondrial DNA is significant in maternal inheritance.
- Chloroplast DNA contains genes that are important for photosynthesis.
- DNA is not present in ribosomes.
Ribosomes consist of two subunits, one large and one small, each of which comprises some RNA (called ribosomal RNA) and protein. They are found in both eukaryotic and prokaryotic cells. They do not have any DNA. Therefore, option D is the correct answer.
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Concepts Used:
Cell: The Unit of Life
- A cell is derived as the functional and structural unit of life. Every cell is surrounded by a cell membrane that dissects the external and internal environments of the cell. The interior environment of a cell is called the cytoplasm.
- It carries cellular machinery and structural elements. The nucleus is present in the center of the cell, which includes all the hereditary information of an organism. Some of the molecules present in the cell are protein, carbohydrates, starch, and sugar.
Read More: Fundamental Unit of Life: Cell
Parts of Cell:
The different parts of a cell and their functions are as follows:
- Cell Membrane
- Cell Wall
- Nucleus
- Cytoplasm
