Structure and function of the ovaries
By: Lisa Stephens
The ovaries are a pair of ovum-producing glands that are part of the female reproductive system. Each ovary is oval shaped and roughly the size of an almond. They sit just above the fallopian tubes in the lateral wall of the pelvis in an area...
Understanding the Human Genome Project
By: Janette Peel
Locked inside your body, amongst the tiny strands of DNA are the secrets of what makes you who you are; your body, your life and your personality. The human genome is the complete description of every one of the genes that you carry within you...
How double-strand DNA breaks are repaired
By: Alicia M Prater PhD
Breaks in the DNA strand due to exposure to damaging agents can occur across one (single strand break, SSB) or both strands (double strand break, DSB). Types of environmental damage that can induce chromosomal damage of this type include ionizing radiation, such as UV irradiation...
DNA mismatch repair explained
By: Alicia M Prater PhD
DNA is the genetic material of human cells. The sequence is made of four nucleotides that pair with one another via hydrogen bonds in the center of the double helix. The four nucleotides are adenine, guanine, thymine, and cytosine. Adenine is always paired with thymine...
Nucleotide excision repair explained
By: Alicia M Prater PhD
Deoxyribose nucleic acid, more commonly known as DNA, is the genetic material in human cells. The integrity of the nucleotides, or bases, that make up the sequence is important for proper cell function. Mutations to the chemical structure of the bases, caused by a number...
DNA base excision repair explained
By: Alicia M Prater PhD
Deoxyribose nucleic acid, known more commonly as DNA, is the genetic material of human cells. The integrity of the bases, or nucleotides, that create the DNA sequence is important for proper cell function via the transcription of proteins. Mutations to the chemical structure of...
DNA repair mechanisms
By: Alicia M Prater PhD
Deoxyribonucleic acid (DNA) is the genetic material of human cells. Changes in the DNA can disrupt cell function and result in disease, including cancer. Types of alterations include damage due to environmental effects and mistakes made during replication. Strand Breaks Environmental damage, including ionizing radiation...
Robots performing surgical operations
By: Rick Badman
Today we have limited use of robots for surgery. In the future, even clinics will have robots for simple surgical procedures. First off, I refer to them as mediunits. That is what I have called them for over two decades. In the future, there...
Mankind will become Extinct unless we have Genetic Engineering
By: Rick Badman
Mankind will become extinct unless we have genetic engineering. Due to genetic degradation, our DNA is becoming weaker and subject to more errors. Unless there is genetic engineering, mankind may not last more than another 100,000 years, if that long. There are many reasons...
Linus Pauling: His life and accomplishments remembered
By: Wendy R.
Linus Pauling was born in Portland Oregon on February 28th, 1901. Pauling was educated at Oregon State College where he received his Bachelor's degree in Chemical Engineering. He continued on to graduate school where his research focused on the x-ray diffraction of crystals. Upon finishing...

 

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