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114,800 (2015) [8] Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders typically inherited. [2] The most common type is known as sickle cell anemia. [2] It results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells. [2]
Genetics is the study of genes, genetic variation, and heredity in organisms. [1][2][3] It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically.
1 in 10,000 people [2] Spinal muscular atrophy (SMA) is a rare neuromuscular disorder that results in the loss of motor neurons and progressive muscle wasting. [3][4][5] It is usually diagnosed in infancy or early childhood and if left untreated it is the most common genetic cause of infant death. [6] It may also appear later in life and then ...
Derek Stefureac was having a normal day at work, talking to a colleague, when the first symptom appeared. “I felt some really intense numbness in my left foot,” Stefureac, 52, tells PEOPLE ...
Cystic fibrosis transmembrane conductance regulator. Cystic fibrosis transmembrane conductance regulator (CFTR) is a membrane protein and anion channel in vertebrates that is encoded by the CFTR gene. [5][6] Geneticist Lap-Chee Tsui and his team identified the CFTR gene in 1989 as the gene linked with CF (cystic fibrosis). [7]
The immune system is a network of biological systems that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue.
Horizontal gene transfer (HGT) or lateral gene transfer (LGT) [1][2][3] is the movement of genetic material between organisms other than by the ("vertical") transmission of DNA from parent to offspring (reproduction). [4] HGT is an important factor in the evolution of many organisms. [5][6] HGT is influencing scientific understanding of higher ...
3) HIV enters the cell. C-C chemokine receptor type 5, also known as CCR5 or CD195, is a protein on the surface of white blood cells that is involved in the immune system as it acts as a receptor for chemokines. [5] In humans, the CCR5 gene that encodes the CCR5 protein is located on the short (p) arm at position 21 on chromosome 3.