DNA, or deoxyribonucleic acid, is found in the nucleus of a cell. Also, a small amount of DNA known as mitochondrial DNA, or mtDNA, is found in the mitochondria of the cell because the 37 genes found in mtDNA are necessary for the mitochondria to function. Every living creature has unique DNA that contains its biological instructions.Know More
Each human is comprised of not millions, but trillions of cells. Each cell has its own nucleus that holds a copy of the DNA for that individual. The nucleus of the cell is similar to the cockpit of an airplane; t is the command center where everything happens. Any action the cells take, whether that be to grow or replicate, begins in the nucleus. It is also the place where DNA is stored safely away. In order to protect the DNA, a membrane known as the nuclear envelope surrounds the DNA in the nucleus to separate it from the rest of the cell.
The mitochondria of a cell where mtDNA is found creates enzymes and molecules like RNA and tRNA, which are involved in making amino acids. Without the mtDNA, the mitochondria could not function because the instructions to create these enzymes and molecules is housed in the mtDNA.Learn more about Biology
The two main functions of the genetic material in a cell, also known as DNA, are gene expression and replication. DNA accomplishes gene expression by providing the instructions necessary for cell machinery to make proteins. Replication occurs when the DNA makes a copy of itself for incorporation into a new cell.Full Answer >
Chromosomes can be found in the nucleus of every plant and animal cell; these combinations of DNA and protein are essential components of genetic information. DNA is a long chain of genetic information that would not be able to fit inside a cell without the structural assistance of chromosomes, and this information helps determine a plant or animal's individual traits, including physical characteristics and behavioral capabilities. The DNA that is contained in chromosomes is passed from parents down to offspring.Full Answer >
The nucleus is the part of the cell that contains most of the genetic information found in cells. Genetic information is stored within a DNA molecule, tightly wound into a structure known as a chromosome. A tiny amount of genetic information is found in the mitochondria, outside of the nucleus.Full Answer >
In eukaryotic cells, DNA replication occurs in the nucleus during the S phase of the cell cycle. The cell's total DNA is found in the nucleus, which is why replication occurs there.Full Answer >