NEET BIOLOGY

Detailed explanation-1: -The nucleus is the largest organelle in a eukaryotic cell, and it’s considered the cell’s control center. It contains most of the cell’s DNA (which makes up chromosomes), and it is encoded with the genetic instructions for making proteins .

Detailed explanation-2: -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-3: -FIGURE 5: Mitochondria are structures within the cell cytoplasm. The nucleus (Figure 6) serves as the cell’s command center, sending directions to the cell to grow, mature, divide, or die. It also houses DNA (deoxyribonucleic acid), the cell’ s hereditary material.

Detailed explanation-4: -The instructions stored within DNA are read and processed by a cell in two steps: transcription and translation. Each of these steps is a separate biochemical process involving multiple molecules. During transcription, a portion of the cell’s DNA serves as a template for creation of an RNA molecule.