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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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OCT 17, 2021Genetics & Genomics
A new study has used computational tools to investigate evolution in the human genome that's occurred over the past 50,0 ...Written By: Carmen LeitchOCT 14, 2021Cancer
Colorectal cancer develops when a series of changes occur across multiple genes. While researchers have paid signi ...Written By: Katie KokolusOCT 10, 2021Cell & Molecular Biology
There is a well-known causal connection between smoking and lung cancer, and most research on lung cancer has been focus ...Written By: Carmen LeitchOCT 06, 2021Genetics & Genomics
Huntington's disease is a neurodegenerative disorder that's caused by mutations in the huntingtin gene. People can be di ...Written By: Carmen LeitchOCT 05, 2021Genetics & Genomics
As our body ages, cells have to divide to replenish those that become worn out or damaged. Most cells also carry the gen ...Written By: Carmen LeitchOCT 04, 2021Cell & Molecular Biology
Neurons signal to one another at crucial junctions called synapses, and synaptic dysfunction is thought to play a role i ...Written By: Carmen LeitchOCT 04, 2021Genetics & Genomics
Since it's become quick and relatively inexpensive to sequence a human genome, researchers have gained unprecedented and ...Written By: Carmen LeitchOCT 03, 2021Cell & Molecular Biology
Organisms follow the cycle of the day, even at the cellular level, creating an internal clock. Humans' biology will ...Written By: Carmen LeitchSEP 30, 2021Microbiology
When health officials are trying to control a disease outbreak, diagnostic tests can be a crucial tool that provides inf ...Written By: Carmen LeitchSEP 26, 2021Genetics & Genomics
Muscle diseases that have a genetic basis can cause muscles to waste away, and may lead to a premature death. There aren ...Written By: Carmen LeitchSEP 24, 2021Cell & Molecular Biology
This photo by Sozen & Jorgensen et al., Nature Communications, shows an embryo-like structure made from human stem cells ...Written By: Carmen LeitchSEP 24, 2021Genetics & Genomics
Kleefstra syndrome is a rare genetic disease caused by a mutation or deletion in one copy of a gene called EHMT1, which ...Written By: Carmen LeitchSEP 23, 2021Drug Discovery & Development
Last week, the United States Food and Drug Administration (FDA) granted approval for the first oral therapy to ...Written By: J. Bryce OrtizSEP 22, 2021Health & Medicine
A study from University College London found a genetic mutation in a gene encoding for more accurate translation of prot ...Written By: Alexandria BassSEP 20, 2021Genetics & Genomics
Human immunodeficiency virus (HIV) is a retrovirus, which is a type of virus that can write its genetic material into th ...Written By: Carmen LeitchSEP 20, 2021Cell & Molecular Biology
Proteins are absolutely essential for the survival of organisms; they carry out many functions that are critical to life ...Written By: Carmen LeitchSEP 18, 2021Genetics & Genomics
The DNA in our cells can accumulate damage over may years. Environmental influences like UV light or cigarette smoke may ...Written By: Carmen LeitchSEP 13, 2021Genetics & Genomics
A genome contains instructions for making genes, and when an organism needs to produce proteins, it transcribes a gene s ...Written By: Carmen LeitchSEP 06, 2021Microbiology
HIV vaccines have remained elusive in part because the virus has a powerful ability to mutate, and there are so many str ...Written By: Carmen LeitchSEP 06, 2021Genetics & Genomics
In our gut, there is a vast community of microorganisms. It's crucial that they stay there in the gastrointestinal tract ...Written By: Carmen LeitchSEP 06, 2021Cell & Molecular Biology
The CRISPR gene editor uses RNA molecules that act as guides that ta Cas9 proteins, which are like enzymatic scissors, t ...Written By: Carmen LeitchSEP 02, 2021Genetics & Genomics
There's so much more to the human genome than just instructions for making proteins, for example, many non-coding region ...Written By: Carmen LeitchAUG 30, 2021Microbiology
Researchers have found that the immune systems of some carnivorous animals appear to be defective; they don't express a ...Written By: Carmen LeitchAUG 29, 2021Cell & Molecular Biology
The loss of a microRNA might be interfering with neuromuscular synapse function, causing breathing muscle paralysis, sug ...Written By: Carmen Leitch
OCT 17, 2021
Genetics & Genomics
A new study has used computational tools to investigate evolution in the human genome that's occurred over the past 50,0
...
Written By:
Carmen Leitch
OCT 14, 2021
Cancer
Colorectal cancer develops when a series of changes occur across multiple genes. While researchers have paid signi
...
Written By:
Katie Kokolus
OCT 10, 2021
Cell & Molecular Biology
There is a well-known causal connection between smoking and lung cancer, and most research on lung cancer has been focus
...
Written By:
Carmen Leitch
OCT 06, 2021
Genetics & Genomics
Huntington's disease is a neurodegenerative disorder that's caused by mutations in the huntingtin gene. People can be di
...
Written By:
Carmen Leitch
OCT 05, 2021
Genetics & Genomics
As our body ages, cells have to divide to replenish those that become worn out or damaged. Most cells also carry the gen
...
Written By:
Carmen Leitch
OCT 04, 2021
Cell & Molecular Biology
Neurons signal to one another at crucial junctions called synapses, and synaptic dysfunction is thought to play a role i
...
Written By:
Carmen Leitch
OCT 04, 2021
Genetics & Genomics
Since it's become quick and relatively inexpensive to sequence a human genome, researchers have gained unprecedented and
...
Written By:
Carmen Leitch
OCT 03, 2021
Cell & Molecular Biology
Organisms follow the cycle of the day, even at the cellular level, creating an internal clock. Humans' biology will
...
Written By:
Carmen Leitch
SEP 30, 2021
Microbiology
When health officials are trying to control a disease outbreak, diagnostic tests can be a crucial tool that provides inf
...
Written By:
Carmen Leitch
SEP 26, 2021
Genetics & Genomics
Muscle diseases that have a genetic basis can cause muscles to waste away, and may lead to a premature death. There aren
...
Written By:
Carmen Leitch
SEP 24, 2021
Cell & Molecular Biology
This photo by Sozen & Jorgensen et al., Nature Communications, shows an embryo-like structure made from human stem cells
...
Written By:
Carmen Leitch
SEP 24, 2021
Genetics & Genomics
Kleefstra syndrome is a rare genetic disease caused by a mutation or deletion in one copy of a gene called EHMT1, which
...
Written By:
Carmen Leitch
SEP 23, 2021
Drug Discovery & Development
Last week, the United States Food and Drug Administration (FDA) granted approval for the first oral therapy to
...
Written By:
J. Bryce Ortiz
SEP 22, 2021
Health & Medicine
A study from University College London found a genetic mutation in a gene encoding for more accurate translation of prot
...
Written By:
Alexandria Bass
SEP 20, 2021
Genetics & Genomics
Human immunodeficiency virus (HIV) is a retrovirus, which is a type of virus that can write its genetic material into th
...
Written By:
Carmen Leitch
SEP 20, 2021
Cell & Molecular Biology
Proteins are absolutely essential for the survival of organisms; they carry out many functions that are critical to life
...
Written By:
Carmen Leitch
SEP 18, 2021
Genetics & Genomics
The DNA in our cells can accumulate damage over may years. Environmental influences like UV light or cigarette smoke may
...
Written By:
Carmen Leitch
SEP 13, 2021
Genetics & Genomics
A genome contains instructions for making genes, and when an organism needs to produce proteins, it transcribes a gene s
...
Written By:
Carmen Leitch
SEP 06, 2021
Microbiology
HIV vaccines have remained elusive in part because the virus has a powerful ability to mutate, and there are so many str
...
Written By:
Carmen Leitch
SEP 06, 2021
Genetics & Genomics
In our gut, there is a vast community of microorganisms. It's crucial that they stay there in the gastrointestinal tract
...
Written By:
Carmen Leitch
SEP 06, 2021
Cell & Molecular Biology
The CRISPR gene editor uses RNA molecules that act as guides that ta Cas9 proteins, which are like enzymatic scissors, t
...
Written By:
Carmen Leitch
SEP 02, 2021
Genetics & Genomics
There's so much more to the human genome than just instructions for making proteins, for example, many non-coding region
...
Written By:
Carmen Leitch
AUG 30, 2021
Microbiology
Researchers have found that the immune systems of some carnivorous animals appear to be defective; they don't express a
...
Written By:
Carmen Leitch
AUG 29, 2021
Cell & Molecular Biology
The loss of a microRNA might be interfering with neuromuscular synapse function, causing breathing muscle paralysis, sug
...
Written By:
Carmen Leitch