A gene is the basic physical and functional unit of hereditary. Every person has two copies of each genes, one inherited from each parent. For instance, blue colored eyes are considered a recessive gene. The most common question asked about eyes is, "What color will my baby's eyes be?"
Genes come in pairs, and each gene in a pair may differ slightly. One gene may be dominant, and override the other gene. A recessive gene …show more content…
only has an effect if both genes in a pair are recessive. An example is the eye color. Blue is the recessive, and brown is the dominant gene.
When both parents have blue eyes, they will both have a pair of recessive genes for blue eyes. All of their children will therefore have blue eyes since there is no dominant gene present to mask the recessive gene. Genetics is the study and the variation of inherited characteristics that make up new life. There is now technology for it, and it is very advanced.
Hereditary is a biological process where a parent passes certain genes onto their children or offspring which all falls under the study of genetics.
Us as a person, we have up to 46 chromosomes divided equally between the mother and father. The child therefore gets 23 chromosomes each from both parents.
Genes are like the building blocks of hereditary; every child inherits genes from both of their biological parents. Some traits are physical such as: eyes, hair and skin color. The downside is that the offspring could inherit disorders or diseases that lie beyond the family.
A genetic disorder or disease is an inherited medical condition caused by a DNA abnormality. The most common types of disorders/diseases include: Down Syndrome, Cystic Fibrosis, Huntington's Disease, Sickle Cell Anemia, and Hemophilia. Below, I will attach each disease/disorder with its definition.
• Down Syndrome: a genetic chromosome disorder causing development and intellectual delays
• Cystic Fibrosis: an inherited life threatening disorder that damages the lungs and digestive system
• Huntington's Disease: an inherited condition in which nerve cells in the brain break down over time
• Sickle Cell Anemia: a group of disorders that cause red blood cells to become misshapen and break down
• Hemophilia: a disorder in which blood doesn't clot
normally
DNA
DNA is also known as deoxyribonucleic acid. It is the hereditary material in humans and almost every living organism. Nearly every cell in a person's body contains the same DNA. Most DNA is found in the nucleus, but a small amount of DNA can be located in the mitochondria.
DNA can help you in many ways. It can help you find out things such as if you are at risk for cancer, diabetes, obesity, and many more comorbidities. This would allow someone to take necessary precautions to prevent such illnesses. Pregnant women can also benefit from DNA testing. They can chose to perform DNA testing on their unborn child to determine if the baby will have any congenital defects.