Analysing Epidemiological Data Epidemiology is the study of the distribution and incidence of diseases in the population and the associated or contributory risk factors It has contributed to our un...
Creating Hybridoma Cells Introduction Monoclonal antibodies (Mabs) are artificially produced antibodies produced from a single B cell clone The hybridoma method is used to make monoclonal antibodie...
7月，正值国际高中秋季招生的冲刺阶段，距离9月开学不足2个月，学校剩余招生名额十分紧张，对国际教育有兴趣的家长要抓紧了！ 很多家长在咨询时会问，有没有一所学校，入学竞争压力没那么大，办学条件各方面却都...
Production of Histamines Histamines are chemicals created by the body in response to allergens such as pollen, pet dander, food substances or dust Allergens are antigens and so they are encountered...
Zoonosis Some diseases are species specific whilst others can cross species barriers to infect multiple different species Species-specific disease may be unable to cross the species barrier for man...
Jenner's Ethics Introduction The principles underpinning vaccinations were discovered by Edward Jenner in the 1700s when he developed the first smallpox vaccine Smallpox was a highly infectious dis...
Antibodies: Function The function of antibodies produced by B-cells is to destroy pathogens within the body This can be done either directly, or by recruiting other immune cells Antibodies aid the ...
Specific Immune Response T-Helper cells (a type of lymphocyte that responds to specific antigens) and mature B cells (another type of lymphocyte) have specific receptors located on their cell surfa...
Antigens Every organism has cells with unique molecules on the cell surface membrane which act as markers to identify it These unique markers are macromolecules and they allow cell-to-cell recognit...
Populations & their Allele Frequencies Comparison of allele frequencies of geographically isolated populations Allele frequency is a term that assigns a relative frequency of an allele at a par...
Polyploidy & Speciation NOS: Looking for patterns, trends and discrepancies—patterns of chromosome number in some genera can be explained by speciation due to polyploidy When patterns and trend...
Gradualism & Speciation Speciation can be defined as the emergence of new and distinct species that are reproductively isolated from other separate species Two theories exist to explain the eme...
