BRCA mutations increase the likelihood of developing breast cancer, but genetic testing can identify the mutation. BRCA1 and BRCA2 are the genes associated with breast cancer, and testing is recommended for those with a family history of breast cancer or a BRCA mutation. Testing is accompanied by genetic counseling to discuss preventative measures. A BRCA […]
BRCA1 is a gene that produces a protein used to repair damaged DNA. Mutations in this gene can increase the risk of breast and ovarian cancer. Genetic testing is available for those who think they may have inherited a BRCA1 mutation. BRCA1 is a gene involved in tumor suppression and is also known as ‘breast […]
Mutations are changes in DNA structure or amount. Nonsense mutations are single base substitutions that change a codon to a stop codon, resulting in a shorter mRNA strand and truncated protein. Nonsense mutations cause genetic diseases like cystic fibrosis, Duchenne muscular dystrophy, beta thalassemia, and Hurler syndrome. Whenever there is a change in the structure […]
Gene mutation can have positive or negative effects on an organism and can be caused by factors such as cell division, radiation, and viruses. It is essential for species evolution and can lead to beneficial adaptations. The concept of mutation has been explored in science fiction, but there is still much to be understood by […]
The mutation rate is the probability of genetic mutations occurring within a single generation. High rates can help species adapt to changing environments, but many mutations are harmful to individuals. Low rates are good for individuals but make it difficult for species to adapt. Bacteria and viruses have high mutation rates, which can be problematic […]
Frameshift mutations cause abnormal proteins due to errors in mRNA sequencing, leading to misread codons and incorrect amino acid linking. This can result in various human diseases, including Tay Sachs disease. Frameshift mutations occur from nucleotide insertions or deletions and can cause common diseases like cancer. A frameshift mutation is a genetic defect that causes […]
Chromosomal mutations affect the entire structure of a chromosome, often causing significant effects on multiple genes. Types of mutations include fusion, inversion, insertion, and deletion. Researchers use genetic mapping and sequencing to identify mutations. Chromosomes, which contain genetic information in the cells of many different organisms, can be mutated through a variety of different processes, […]
Somatic mutations occur in non-reproductive cells after conception and can lead to medical problems, including cancer. They cannot be inherited and can be caused by toxins, radiation, or random errors in cell division. A somatic mutation is a genetic mutation that occurs in a somatic cell after conception. These mutations can lead to a variety […]
