![]() ![]() When a cell divides, the two new cells contain all the same DNA that the original cell had. In eukaryotic cells, DNA is found in the nucleus as a tightly coiled double helix.ĭNA molecules are replicated during cell division. Each strand of DNA is bonded to a second strand of DNA to form a DNA double helix. It comes in the form of a long, linear molecule referred to as a strand. ![]() Specific sections of a DNA molecule provides the information to build specific proteins which can then be used by a cell to express the desired gene.Ī DNA molecule is a nucleic acid, one of the four molecules of life. ![]() DNA stands for deoxyribonucleic acid and it is the molecule that holds the genetic information for a cell and an organism.Ī DNA molecule contains a code that can be used by a cell to express certain genes. DNAĭNA is the cornerstone of genetics and is the perfect place to start for an introduction to genetics. The environment that an organism lives in can also influence how genes are expressed. This inheritance of genetic material by offspring influences the appearance and behavior of the offspring. During reproduction, DNA is replicated and passed from a parent to their offspring. Heredity is what makes children look like their parents. A gene is one particular section of a DNA molecule that tells a cell to perform one specific task. It provides cells with the information they need to perform tasks that allow an organism to grow, survive and reproduce. DNA molecules hold all the genetic information for an organism. Genetics is built around molecules called DNA. This introduction to genetics takes you through the basic components of genetics such as DNA, genes, chromosomes and genetic inheritance. The passing of traits from parents to offspring is known as heredity, therefore, genetics is the study of heredity. Genetics is a field of biology that studies how traits are passed from parents to their offspring. ![]()
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