Why scientists would want to use gene silencing
By: Alicia M Prater PhD
Gene silencing is a technique that results in stopping the expression of a gene, effectively turning the gene off. This is a natural process in cells that is accomplished by epigenetic changes, changes to the genome that are not changes in the sequence; DNA-protein interactions...
By: Darian Peters
Drosophila is the small fruit fly (so-called because of the fondness of the species for rotting fruit) that has played a big part in the development of modern genetic science. The Drosophila melanogaster species, in particular, is one of the animals with the very best...
What is epigenetics?
By: Alicia M Prater PhD
Epigenetics is a relatively new field of genetics and the term itself is only 60 years old, originally referring to a more broad concept of complex organism development. The epigenome is the pattern of chemical alterations on chromosomes, which result in changes in gene expression...
By: Darian Peters
The natural process of gene expression is where the inheritable information provided by a gene on a DNA strand is turned into a gene product with some function for the organism. The process involves several stages and the end product will be a protein or...
What are the benefits of human cloning?
By: Tolero
The idea of cloning human beings might seem futuristic and something only done by mad scientists in science fiction movies. However thanks to our recent advancements in technology this idea might turn into reality. Like any new concept there are always many people that are...
How gene expression creates proteins
By: Darian Peters
Gene expression is an important natural process where the inheritable information provided by a gene on a DNA strand in a cell is turned into a gene product with some function for the organism. There are several stages to the process and the end product...
What it means to be color blind
By: Barbara Stanley
Color blindness is a malfunction of the retina, which converts light energy into electrical energy that is translated to the brain. It is extremely rare for someone to be totally color blind. Most people actually have a form of color deficiency. There are several types...
The role of DNA methylation in gene expression
By: Alicia M Prater PhD
Methylation is one type of epigenetic change that can occur to DNA. The enzyme DNA methyltransferase is responsible for DNA methylation. The methyltransferase attaches a methyl group (-CH3) to cytosine, one of four nucleotides in the DNA sequence. The cytosines that become methylated are next...
What it means to be color blind
By: Jonnie Chastain
WHAT IT MEANS TO BE COLOR BLINDFor a small percentage of planet Earth's population the world looks much different than it does for the rest of us. They are the 5% to 8% of men and .05% of women who have Color Vision Deficiency. They...
By: Justin Lee
People who are color-blind can't perceive differences between some of the shades of colors that others can distinguish. The most common test for color-blindness involves showing the viewer a circle comprised of dots. In the middle of the circle, dots of a slightly different color...

 

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