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...
Edexcel IGCSE Biology 复习笔记 2.8.7 Human Transport Systems: Platelets Platelets Platelets are involved in helping the blood clot Platelets are fragments of cells that are involved in blood...
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...
Interpret & Evaluate Data about the Uses of Recombinant DNA Technology DNA that has been altered by introducing nucleotides from another source is called recombinant DNA (rDNA) If the or...
