Time of Flight Mass Spectrometry Mass Spectrometry is a powerful analytical technique It is the most useful instrument for accurate determination of the relative atomic mass of an element, b...
Subatomic Structure of Atoms & Ions The mass of an atom is concentrated in the nucleus, because the nucleus contains the heaviest subatomic particles (the neutrons and protons) The mass ...
Uses of Genetic Fingerprinting Polymerase chain reaction (PCR) is a common molecular biology technique used in most applications of gene technology, for example, DNA profiling (eg. identific...
Genetic Fingerprinting DNA can be collected from almost anywhere on the body, e.g. the root of a hair or saliva from a cup. After collection DNA must be prepared for gel electrophoresis so t...
Apparatus & Techniques: Gel Electrophoresis Gel electrophoresis is a technique used widely in the analysis of DNA, RNA and proteins During electrophoresis the molecules are separated acc...
Variable Number Tandem Repeats Variable number tandem repeats (VNTRs) are regions found in the non-coding part of DNA A short DNA sequence (e.g. GATA) is repeated a variable number of times ...
Genetic Counselling & Personalised Medicine Genetic counselling Genetic screening can leave a patient or parent with many questions Genetic counsellors are commonly used to help individu...
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...
DNA Probes & DNA Hybridisation DNA hybridisation is a process that is commonly used in medical diagnostic tests and genetic screening In DNA hybridisation two complementary single-strand...
