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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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DEC 03, 2015Health & Medicine
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DEC 03, 2015
Health & Medicine
Fibrodysplasia ossificans progressiva (FOP) is an extremely rare genetic disease that causes bone to grow in abnormal ar
...
Written By:
Kara Marker
NOV 29, 2015
Clinical & Molecular DX
Researchers at Sanford Burnham Prebys Medical Discovery Institute announced the discovery of a new anti-cancer compound,
...
NOV 29, 2015
Cell & Molecular Biology
Nearly all mammalian cells contain cilia – microscopic hair-like structures that extend from the surface of cells.
...
Written By:
Sarah Hertrich
NOV 28, 2015
Cardiology
Normally exercise is viewed as a healthy activity that keeps us fit and our body functioning efficiently. However, in pe
...
Written By:
Kara Marker
NOV 26, 2015
Videos
What is the cure for cancer? Well, it appears that's not the correct way to look at the problem. Cancer isn't one thing.
...
Written By:
Brenda Kelley Kim
NOV 25, 2015
Immunology
The H1N1 influenza caused a massive panic in 2009, and scientists may have an answer for why this strain of flu is so mu
...
Written By:
Kara Marker
NOV 22, 2015
Cell & Molecular Biology
Microvillus inclusion disease (MVID) is a cause of chronic watery diarrhea that is attributed to a lack of nutrient abso
...
Written By:
Sarah Hertrich
NOV 21, 2015
Cardiology
Neurofibromin is an important protein found in all of your cells that naturally suppresses tumor formation and is an ant
...
Written By:
Kara Marker
NOV 20, 2015
Videos
Dyslexia affects over 40 million Americans, and the diagnosis is often associated with stigmas surrounding learning and
...
NOV 16, 2015
Cell & Molecular Biology
The genomes of humans and animals are much more complex than scientists originally thought. In addition to DNA and RNA,
...
Written By:
Sarah Hertrich
NOV 16, 2015
Videos
By current estimates, 1.4 million Americans are affected with Lewy Body Dementia (LBD). Robin Williams, the famous actor
...
NOV 12, 2015
Cell & Molecular Biology
Our DNA encodes genes which express specific patterns that lead to the production of a specific protein which has a spec
...
Written By:
Sarah Hertrich
NOV 02, 2015
Microbiology
What makes a strain of Salmonella infect cows, but not humans or birds? Researchers at the University of Pennsylvania co
...
Written By:
Kerry Evans
NOV 02, 2015
Immunology
B-cell leukemia occurs in 80-85 percent of children with acute lymphoblastic leukemia (ALL), a fast-growing cancer that
...
Written By:
Kara Marker
NOV 01, 2015
Clinical & Molecular DX
Gene-targeted and personalized therapy currently exists for a small handful of diseases, but that list may soon include
...
SEP 29, 2015
Genetics & Genomics
A scientific team including the scientist who first harnessed the CRISPR-Cas9 system for mammalian genome editing has re
...
Written By:
Ilene Schneider
SEP 27, 2015
Neuroscience
Nearly two million Americans, aged 12 or older, either abused or were dependent on opioids in 2013, according to the Cen
...
Written By:
Ilene Schneider
SEP 21, 2015
Genetics & Genomics
The traditional diet of the Inuit Greenland natives is considered an example of how high levels of omega-3 fatty acids c
...
Written By:
Ilene Schneider
SEP 21, 2015
Cancer
Scientists at The Scripps Research Institute have discovered a critical role played by an enzyme in cancer and autoimmun
...
Written By:
Ilene Schneider
SEP 16, 2015
Cancer
University of Manchester scientists have identified a gene, FOXC1, that, if turned on, can cause more aggressive cancer
...
Written By:
Ilene Schneider
SEP 16, 2015
Microbiology
Methicillin-Resistant Staphylococcus Aureus (MRSA) is a dangerous bacterium that has become increasingly resistant to mu
...
Written By:
Kara Marker
SEP 15, 2015
Immunology
Today, a review from Clinical Cancer Research, a journal of the American Association for Cancer Research brought to
...
Written By:
Kara Marker
SEP 10, 2015
Cancer
A drug-like molecule could prove valuable in cancer research with the potential of developing a new pharmaceutical.
...
Written By:
Ilene Schneider
SEP 10, 2015
Cancer
Should cost be a concern in cancer testing? Female carriers of mutated BRCA genes have a significantly higher risk for d
...
Written By:
Ilene Schneider