#What locus does SCID sffect full#
#What locus does SCID sffect code#

This protein is responsible for regulating the flow of salt and fluids in and out of the cells in different parts of the body. Cystic fibrosis is caused by mutations in the gene that produces the cystic fibrosis transmembrane conductance regulator (CFTR) protein. In these cases, people's genes may differ or the protein made by the gene is slightly different - resulting in a different eye color - but the genes and the proteins work correctly.Īt other times, the change in a gene may cause the protein to not work or not be made at all. Sometimes the differences are minor or do not affect a person's health - like two encyclopedia entries that are worded in slightly different ways but still say the same thing. Within our genetic encyclopedia, there are small differences in our genes. How Changes in the CFTR Gene Affect the Bodyĭifferent types of changes, or mutations, in our genes affect the body in different ways. But not every single letter in the genetic encyclopedia is the same in all of us, which helps to explain why we are not all exactly alike. If we all shared 100 percent of our genetic material then we would all be as alike as identical twins are.

#What locus does SCID sffect code#

The DNA code is made up of letters that spell out the entries of our genetic encyclopedia. The genes supply the body with instructions for making proteins.Īll of this genetic information that makes up our genes is in code and stored as a molecule called deoxyribonucleic acid (DNA). However, eggs and sperm have only a single copy of each chromosome, rather than the pairs found in other cells in the body.Įach chromosome is made up of many genes, which are the entries, or topics, in the encyclopedia.

#What locus does SCID sffect full#

Most cells in the body have a full copy of the genetic encyclopedia, which includes 23 pairs of chromosomes.

Each pair is made up of one copy of a chromosome from the mother and one from the father. Genetic information is stored in chromosomes, which can be thought of as different volumes of our genetic encyclopedia. Our Genetic EncyclopediaĮach of our cells contains genetic information that provides the body with coded instructions to make proteins, which determine how the body looks, develops, and works. CF carriers do not have the disease but can pass their copy of the defective gene on to their children. People who inherit one copy of the CFTR gene that contains a mutation and one normal copy are considered CF carriers.