By: Indira Ananthakrishnan
No one can refute that science is playing a major role in our daily lives. Science has seen new inventions and techniques that help us in our everyday life. No one would have agreed that we can amplify our desired segment of DNA into millions...
By: Tami Port MS
We see different types of organisms all around us, and there are many, many more that are too small for us to see at all. What is it that makes one group of living things distinct from another? Where do scientists draw the line between...
By: Darian Peters
Most people will have a pretty clear intuition of what constitutes a biological species. They will look around and see types of animals that look and behave very differently and consider these types as different species. However, the problem of defining the concept of species...
The diverse functions of RNA
By: Tom Barnes - 518296
RNA stands for Ribonucleic Acid. While it is one of the smallest organelles in the human body, RNA performs countless functions essential to life. RNA is a type of nucleic acid that is made up of a long strand of nucleotides. It is similar...
What are genetic mutations and what causes them?
By: Tami Port MS
Ever wonder why your cat has six toes? Does the latest X-Men movie leave you curious about real mutants? Here's an explanation of genetic mutations; what they are and and how they occur in nature. * The Genetic Code * Genes are units of inheritance...
Small scale genetic mutation: DNA insertions, deletions and frame-shifts
By: Tami Port MS
A mutation is a rare change in a gene's DNA sequence. The result of these genetic mistakes can range from no effect on the organism to the production a defective cellular protein that may have disastrous implications. Deoxyribonucleic acid (DNA), is the genetic material of...
Hereditary versus somatic DNA mutations
By: Sean Lockwood
Mutations have worked hard over the last few millennia to turn us from bacteria into complex sentient life forms capable of writing on a world-wide electronic net. The basics. And for all that hard work they usually only get press only when we hear...
By: Wendy R.
The majority of human genes are expressed in forms of proteins. In order for these proteins to be produced, DNA has to replicate, and than transcribe for RNA. DNA is a double stranded helix which is wound tightly. Making up this helix is a sugar(deoxyribose)...
How science is now able to fix defective mtDNA in the fertilized egg
By: Tami Port MS
How many people does it take to make an embryo? It may sound like a rather simple question or even bizarre riddle, but the recent announcement that British scientist have created an embryo with DNA from three people has caused a bit of a stir...
DNA selective signature of genes
By: Tami Port MS
Genetic sequencing allows MIT scientists to examine natural selection through the selective signature of a gene across a range of microbial species. This new method of analysis identifies the selective signature of genes, the pattern of differences in genetic sequences that indicates the rate of...

 

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