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Gene mutations
Gene mutations describe a change in the DNA sequence that makes up a gene. There are many kinds of gene mutations which have been characterized by scientists. The main categories of mutations are germline mutations, which occur in the gametes (haploid male or female reproductive cells), and somatic mutations, occur in all other cell types. Chromosomal alterations are mutations that change the structure of chromosomes in a variety of ways such as deletion, duplication, insertion, translocation, or inversion of a section of the chromosome. Point mutations include a single nucleotide change within the DNA and these mutations can be classified as silent (the mutation codes for the same amino acid so the change has no effect), missense (the mutation codes for an alternative amino acid), and nonsense (the mutation codes for a premature stop codon). Frameshift mutations occur when the addition or deletion of nucleotide(s) alter the reading frame of the sequence altering all subsequent amino acid coding.
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JUN 30, 2020
Cancer
New hope for glioma patients comes in the form of a novel strategy to target tumors, the results of which are published
...
Written By:
Kathryn DeMuth Sullivan
JUN 28, 2020
Cell & Molecular Biology
Researchers are investigating the complex relationship between cancer, diet, and metabolism in cells, and are attempting
...
Written By:
Carmen Leitch
JUN 27, 2020
Microbiology
We have to share the world with microbes; they can grow almost anywhere, from hydrothermal vents deep in the sea, to the
...
Written By:
Carmen Leitch
JUN 26, 2020
Cancer
Acute myeloid leukemia (AML) is a type of blood cancer that prevents the complete maturation of stem cells. These immatu
...
Written By:
Jasper Cantrell
JUN 25, 2020
Immunology
When cells become diseased or infected, a “suicide switch” is triggered, preventing neighboring cells from b
...
Written By:
Tara Fernandes
JUN 23, 2020
Genetics & Genomics
While mutations can arise in the genome and have little consequence, sometimes they are beneficial and selected to remai
...
Written By:
Carmen Leitch
JUN 23, 2020
Cancer
A study from the University of Hawaii Cancer Center entitled, "Tumour predisposition and cancer syndromes as models
...
Written By:
Kathryn DeMuth Sullivan
JUN 22, 2020
Cancer
Diagnostic tests are the unsung heroes of cancer treatment. While there are more treatments for cancer coming out every
...
Written By:
Jasper Cantrell
JUN 22, 2020
Genetics & Genomics
Every cell in our boy carries a copy of the genome in its nucleus. Some cells are constantly replenished, and the genome
...
Written By:
Carmen Leitch
JUN 19, 2020
Cell & Molecular Biology
Scientists have published complementary studies in Nature Communications that have greatly advanced our understanding of
...
Written By:
Carmen Leitch
JUN 19, 2020
Genetics & Genomics
Many human diseases can be traced back to errors in the genome - genetic mutations. But finding the mutations can be cha
...
Written By:
Carmen Leitch
JUN 14, 2020
Cell & Molecular Biology
To describe it in a very basic way, cancer is uncontrolled cell growth. A number of processes regulate various aspects o
...
Written By:
Carmen Leitch
JUN 13, 2020
Cancer
Most think of cancer in the context of where it is on the body like breast or pancreatic cancer. There are several more
...
Written By:
Jasper Cantrell
JUN 11, 2020
Genetics & Genomics
Errors in genes can cause serious diseases. Some of those errors are large, while others are due to a change in only one
...
Written By:
Carmen Leitch
JUN 01, 2020
Neuroscience
Video: Todd Cohen, PhD (UNC) discusses GA protein accumulation. At the time of this video promising research was a
...
Written By:
Amanda Mikyska
JUN 01, 2020
Cancer
A Stand Up To Cancer program is trying to improve access to genetic testing for those who might be at risk of hereditary
...
Written By:
Kathryn DeMuth Sullivan
MAY 29, 2020
Genetics & Genomics
Huntington's disease (HD) is a fatal neurodegenerative disease caused by an expanded sequence in the huntingtin gene.
Written By:
Carmen Leitch
MAY 26, 2020
Genetics & Genomics
Cancer can occur for many reasons and is influenced by many different factors, including genes and the environment. But
...
Written By:
Carmen Leitch
MAY 22, 2020
Genetics & Genomics
Some people have to count calories and exercise regularly to be skinny while others can consume whatever they want and n
...
Written By:
Carmen Leitch
MAY 18, 2020
Cancer
Genetics can be complicated to say the least. Sometimes it can be as simple as a single mutation in one gene that causes
...
Written By:
Jasper Cantrell
MAY 17, 2020
Microbiology
The community of microorganisms that lives in the gastrointestinal tract has a powerful influence on human health.
Written By:
Carmen Leitch
MAY 14, 2020
Cancer
Pediatric brain cancer is an especially tough pill to swallow. While one in four children does not survive medulloblasto
...
Written By:
Kathryn DeMuth Sullivan
MAY 13, 2020
Cell & Molecular Biology
People have long been searching for natural ways to treat cancer in an effort to avoid some of the harmful side effects
...
Written By:
Carmen Leitch
MAY 11, 2020
Cell & Molecular Biology
Alzheimer's is a common form of dementia that affects as many as 5.5 million Americans and the incidence is increasing a
...
Written By:
Carmen Leitch