Determining the Subatomic Structure of Atoms & Ions An atom is neutral and has no overall charge Ions on the other hand are formed when atoms either gain or lose electrons, causing them to beco...
Mass & Charge Distribution The mass of an atom is concentrated in the nucleus, because the nucleus contains the heaviest subatomic particles (the neutrons and protons) The mass of the electron ...
Structure of an Atom All matter is composed of atoms, which are the smallest parts of an element that can take place in chemical reactions Atoms are mostly made up of empty space around a very smal...
GMOs in Food: Social & Ethical Implications The genetic modification of microorganisms for the production of medicines, antibiotics and enzymes raises little debate compared to the use of genet...
Genetic Engineering: Use in Agriculture Genetic engineering is a technique used to deliberately modify a specific characteristic (or characteristics) of an organism The technique involves removing ...
Social & Ethical Considerations The use of gene technology (genetic screening and gene therapy) in medicine is becoming more common Genetic screening in medicine is being used to: Allow people ...
Gene Therapy Gene therapy involves using various mechanisms to alter a person's genetic material to treat, or cure, diseases As scientists gain a better understanding of the human genome and theref...
Genetic Screening In certain circumstances (eg. in the pregnancy in an older woman, or pregnancy where there is a family history of a genetic disease) may require individuals to determine if they h...
Recombinant Human Proteins DNA that has been altered by introducing nucleotides from another source is called recombinant DNA (rDNA) If the organism contains nucleotides from a different species it...
