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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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FEB 03, 2016
Videos
Gene editing is the brave new world of treating diseases and maybe even wiping out genetic disorders. Cas9 is a protein
...
Written By:
Brenda Kelley Kim
FEB 02, 2016
Cell & Molecular Biology
A team led by scientists at The Scripps Research Institute (TSRI) has solved a long-standing mystery in cell biology by
...
Written By:
The Scripps Research Institute (TSRI)
JAN 31, 2016
Genetics & Genomics
If you’ve ever taken a biology class, you have an understanding of what a gene is. You would be familiar with the
...
Written By:
Cassidy Reich
JAN 30, 2016
Genetics & Genomics
Before the spinal cord, there is the notochord. Development of the notochord is essential for forming the nervous system
...
Written By:
Kara Marker
JAN 29, 2016
Clinical & Molecular DX
Precision medicine makes its way to one of the most complicated organs in the body: the brain. Researchers from the Univ
...
JAN 28, 2016
Genetics & Genomics
A missing copy of a region in chromosome 16, a mutation associated with autism, will always cause a 25-point drop in IQ,
...
Written By:
Kara Marker
JAN 26, 2016
Genetics & Genomics
In order for the body to produced proteins to perform countless functions for daily maintenance, messenger RNA (mRNA) mu
...
Written By:
Kara Marker
JAN 25, 2016
Neuroscience
The Breakthrough Prize, awarded annually for groundbreaking science, is a huge deal. Funded by Internet giants Mar
...
Written By:
Brenda Kelley Kim
JAN 22, 2016
Cardiology
Dogs and humans alike can suffer from a rare bleeding disorder called factor VII deficiency, where lacking a vital coagu
...
Written By:
Kara Marker
JAN 21, 2016
Health & Medicine
Researchers have gained insight into how developing cells switch to a specialized state and how the process might go wro
...
Written By:
Julianne Chiaet
JAN 21, 2016
Videos
The ability to feel pain, while annoying most of the time, is actually a powerful evolutionary adaptation that's helps u
...
JAN 18, 2016
Immunology
Two recent studies have connected protein Blimp1 to key regulation of plasma cells’ ability to produce pathogen-fi
...
Written By:
Kara Marker
JAN 15, 2016
Genetics & Genomics
With new results from whole genome sequencing, scientists have identified a cause for a rare genetic disorder known to c
...
Written By:
Kara Marker
JAN 14, 2016
Genetics & Genomics
A disease that causes blindness in both rats and humans could be prevented or reversed with a new genetic editing techno
...
Written By:
Kara Marker
JAN 12, 2016
Plants & Animals
All multi-cellular life may be the result of a genetic accident that happened more than 600-million years ago, according
...
Written By:
Anthony Bouchard
JAN 08, 2016
Health & Medicine
.body_content a{color: #175CA9;} .body_content a:hover{color: #1A4E75;text-decoration: underline;} .body_content{text-al
...
Written By:
Julianne Chiaet
JAN 08, 2016
Clinical & Molecular DX
Mouse models are essential to medicine and research, as they allow researchers to explore many biological processes that
...
JAN 06, 2016
Neuroscience
The neurodegenerative disease known as ALS (amyotrophic lateral sclerosis) has no cure and no known cause. Sometimes ref
...
Written By:
Brenda Kelley Kim
JAN 03, 2016
Health & Medicine
.body_content a{color: #175CA9;} .body_content a:hover{color: #1A4E75;text-decoration: underline;} .body_content{text-al
...
Written By:
Julianne Chiaet
DEC 31, 2015
Microbiology
Researchers are preparing for a post-polio world. Once polio is eradicated, the World Health Organization plans to
...
Written By:
Kerry Evans
DEC 29, 2015
Clinical & Molecular DX
A new study may open the door for Amyotrophic Lateral Sclerosis (ALS) drug treatment. Researchers from the University of
...
DEC 22, 2015
Cancer
Findings from a new study led by scientists from the Florida campus of The Scripps Research Institute (TSRI) suggest a p
...
Written By:
The Scripps Research Institute (TSRI)
DEC 16, 2015
Clinical & Molecular DX
Our society is fascinated by youth and aging. But while some people are on a quest for the “magic” youth cre
...
DEC 11, 2015
Microbiology
Ever had jet-lag? This woe of long-distance travelers strikes when your circadian rhythm (or, biological clock) is
...
Written By:
Kerry Evans