Science

DNA profiling is a component of forensic science that identifies individuals based on their DNA profile. First applied by Sir Alec Jeffreys in 1984, DNA fingerprinting has become a important...

Agarose gels and acrylamide gels are used in biotechnology laboratories for a process called electrophoresis, which is used to separate molecules of different sizes. Electrophoresis is used for...

Genetics is the study of heredity, evolution and all life forms. Every human has similar characteristics, such as eyes, legs and hair. Genes are the instruction which make us all different. ...

A laboratory experiment to extract DNA from fruit can garner interest from students as DNA is a frequent topic in the media. The laboratory component in a science curriculum supports information...

The cell is the fundamental unit of life, the simplest thing that can live. Just as all chemicals are made of atoms, all living things are made of cells. There are many different types of cells,...

DNA microarray analysis is a technique for studying the activity of different genes. It is used to study genetic diseases from cancer to mental illness.

The vast applications of electrophoresis are most evident in the health or medical industry, including antibiotic and vaccine analysis. Protein and DNA analysis are also important electrophoresis...

According to wordiq.com, human biology is the study of humans but has relations to medicine and primate biology.

Advancements within the field of genetic engineering have resulted in new methods of farming and breeding. One such method involves the cultivation of plants and animals that have preferred...

Human cloning is the process by which DNA is used to make a copy of a single cell or, ultimately, an entire human being. Although the ramifications for human cloning are numerous, scientific...

Using modern genotyping methods, scientists affect not only the field of medicine, but also law enforcement and custody cases. Genotyping methods grew out of the identification of DNA in the...

Recombinant DNA, or rDNA, is the science behind transgenic animals, insect-resistant crops, artificial insulin and other "mutant" or genetically modified organisms, also known as GMOs. The rDNA...

Constructing a DNA double helix model is a fun and interesting project, and a visual method to help students understand a very complex structure. It can serve as a traditional science or class...

DNA testing is the process of using DNA to assist in the identification of individuals. While 99.9 percent of human DNA sequences are the same, scientists are able to use repeat sequences in the...

There are a number of beneficial reasons for human cloning. Both medical and philosophical issues permeate the debate regarding this controversial subject. However, many proponents of human...

Building a DNA model can be as simple as using some licorice, marshmallows and string. Making a candy DNA model is a great way to visually understand the double helix, and a way to make the...

Deoxyribonucleic acid, or DNA, is a long and complex molecule but a stable one, held together by covalent bonds--the sharing of electrons between atoms to form a stable whole.

Building a three-dimensional DNA model can be an educational and fun experience for people of all ages. Not only can it be used for school science projects or classroom presentations, but it will...

The two main types of nucleic acid are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). They store and convey the genetic code of a cell. Messenger RNA (mRNA) is built from a gene of DNA...

All human beings began from the combination of an egg and a sperm cell. As gametes, sperm have a design unlike other cells in the body. The components of sperm enable it to fulfill its purpose of...

For this visualization technique, ethidium bromide is mixed with agarose powder, EDTA buffer and water to form the gel matrix before electrophoresis. As a result, the ethidium bromide molecules...

Essentially, DNA is the blueprint for our hereditary and genetic makeup. Found in each cell in the human body, each person's DNA is entirely unique to his genetics. With such an important and...

The process of DNA isolation and analysis uses a variety of techniques to identify genetic components. Developed over the course of the late 20th century, DNA testing can be used for a number of...

Legos, the definitive children's building blocks, are an apropos way to model the building block of organic matter, deoxyribonucleic acid, more commonly known by its abbreviation, DNA. The process...

While DNA is contained within most cells of living organisms, getting it out and examining it is a complex process. All DNA is made from four different bases, known by their abbreviations A, T, C...

When the discoverers of DNA announced their research findings in 1957, they probably never envisioned the lengths to which teachers would go to get kids enthused about science. Maybe you were...

The cell is the smallest living unit. While all living things contain at least one cell, higher organisms contain a multitude of these components. In the human body, for example, there are around...

The two natural types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). In animals, DNA forms a double helix while RNA is single-stranded. DNA and RNA also differ in...

A thorough understanding of DNA structure is crucial to modern biology students. While textbook diagrams are ubiquitous, many people are better able to conceptualize such a three-dimensional...

Cloning refers to making duplicate biological material. Different kinds of cloning processes have different aims, though many people only know about reproductive cloning, or creating a twin by...

Recombinant means "recombined," a term most often used to describe DNA that is created from genetic parts of different organisms and combined to create new DNA. It is also known as synthetic DNA...

The scientific kingdom Monera is made up of one-celled organisms that most of us refer to as bacteria. Bacteria are the most plentiful and widespread organism on Earth, and the oldest. They are...

There are two main types of nucleic acid: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). They differ by number of strands, by amino acids, by sugars and by use.

All cells must divide to reproduce. In large, complex organisms, such as mammals, cells divide and die in a cycle that keeps the tissues of the organism rejuvenated. The process is called the cell...

DNA fingerprinting receives its name from the traditional pratice of indentifying people based on their fingerprints. Instead of fingersprints, DNA fingerprinting examines the protein-based code...

In criminal cases, DNA fingerprinting is used to link DNA evidence with a particular person. DNA is essentially a blueprint of our genetic information contained within our cells. Even skin cells...

The DNA fingerprinting is a laboratory analysis used for creating a "DNA profile" of an individual. According to the U.S. Department of Education's Human Genome Program, "there is an extremely...

Clones are cells or organisms that have the same genes as another organism. The two types of cloning we hear about most often are reproductive cloning and therapeutic cloning.

Telomerase is a biological catalyst, or enzyme, responsible for the synthesis of specialized regions of the chromosomes of many organisms called telomeres. They are present in all organisms with...

Gel electrophoresis is used in biology and can be used to separate DNA molecules according to size. A tray of gel with buffering solution is connected to an electric current which attracts the...

DNA fingerprinting can determine a child's father or identify suspects from crime scene samples. Because 99.9 percent of human DNA is identical, it is the variations in DNA that are analyzed.

DNA testing is used for personal reasons, police matters and court rulings. Most DNA testing is done to prove the identity of a person as a relative, parent or in genetic testing. Law enforcement...

Extracting genetic material from plants has become an important part of modern mechanized agriculture. By extracting and modifying DNA, genetically modified plant species can be produced that are...

Building a DNA model is not only an enjoyable classroom project, but it can also prove to be an invaluable reference for demonstrating the double helix structure of DNA and serving as an excellent...

Deoxyribonucleic acid, or DNA, is the building block of organisms, so it's no surprise it would be an important part of scientific understanding. A helpful way to better understand the nature of...

Polymerase chain reaction (PCR) is a powerful technique that amplifies genes or any fragment of DNA, making millions of DNA copies from one molecule. The reaction consists of three steps:...

DNA mapping is the process of recording all a genome's information down so that scientists know exactly what the DNA is like at any given point in the organism's genome. DNA is made up of four...

The role of mRNA is to carry coded instructions from genes (sections of DNA) in the cell's nucleus to other parts of the cell. The coded instructions are essential for manufacturing proteins vital...

DNA testing evolved from the study of genetics, which began in the late 1800s when Gregor Mendel first studied the phenomenon of inherited traits in pea plants. His work laid the foundation for...

In order to understand how DNA fingerprinting works, it is necessary to know how DNA differs from person to person. Most of our DNA is exactly the same, person to person--it needs to be, since our...