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What is a gene?

Genes are small sections of DNA within the genome that code for proteins. They contain the instructions for our individual characteristics – like eye and hair color.
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From Gene to Protein

All About Genes and Genetics


DNA is perhaps the most famous biological molecule; it is present in all forms of life on earth. But what is DNA or deoxyribonucleic acid?

In short, DNA is a long molecule that contains each person’s unique genetic code. It holds the instructions for building the proteins that are essential for our bodies to function.

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At the heart of every cellular organism is a set of instructions encoded in DNA – this set of instructions is the organism’s genome. In humans, our genome is made of 23 chromosomes, which, between them, are made up of over 3 billion ‘letters’ of DNA. We inherit two sets of chromosomes, one from each of our parents, so in total we have 46 chromosomes and over 6 billion of letters of DNA.
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Transcription is the process of making an RNA copy of a gene sequence. This copy, called a messenger RNA (mRNA) molecule, leaves the cell nucleus and enters the cytoplasm, where it directs the synthesis of the protein, which it encodes.
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RNA stands for ribonucleic acid. It is an important molecule with long chains of nucleotides. A nucleotide contains a nitrogenous base, a ribose sugar, and a phosphate. Just like DNA, RNA is vital for living beings.

The main job of RNA is to transfer the genetic code need for the creation of proteins from the nucleus to the ribosome.

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Gene Expression

Gene expression is the process by which information from a gene is synthesized into a product, RNA and consequently in proteins. The genes that are expressed, known as the genotype, can have a major influence on the physical characteristics of cells, which are called the phenotype.
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Proteins are organic compounds that contain the element nitrogen as well as carbon, hydrogen, and oxygen. Proteins are the most diverse group of biologically important substances and are often considered to be the central compound necessary for life.
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Overview of The Cell World

What is a Cell?

A cell, in biology, is the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.
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About Stem Cells

Stem cells are undifferentiated cells that can transform into specialized cells such as heart, neurons, liver, lung, skin and so on and can also divide to produce more stem cells.

In a child or young adult, these stem cells are in large supply, acting as a built-in repair system.

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Cell Therapy

Historically, blood transfusions were the first type of cell therapy and are now considered routine. Bone marrow transplantation has also become a well established medical treatment for many diseases, including cancer, immune deficiency and others.
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Gene Therapy

Gene therapy is defined as a set of strategies that modify the expression of an individual’s genes or repair abnormal genes. Each strategy involves the administration of a specific nucleic acid (DNA or RNA).
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