“So many peptides, so few grooves” – compare the ways in which specific antigen recognition is accomplished by MHC molecues, by T cell receptors and by antibody molecules Introduction Specific antigen recognition lies at the heart of the adaptive immune …
MHC molecules have a Kd of 10-6 M. This does not change during an immune response. In contrast, the Ag binding site of Abs has a Kd of around 10-7 M, which may increase during the course of the immune …
The purpose of this study is to discover whether the difficulty of a task increases the helping behavior of the mother towards the child and whether the type of helping behavior: direct, indirect, physical, or verbal helping, changes. A mother …
The results were collected in a tally chart form, (see appendix). The apparatus needed for this study consists of the video of the mother and child completing the jigsaw puzzles, a quiet room where the data can be collected without …
The Id is in the unconscious mind and holds the innate drives stated above, Freud believed this was with us from birth and works on an instant gratification principle e. g. in babies the Id will demand to be nourished …
Everyone has anxiety and they all use what Freud named Defence mechanisms in order to cope with anxiety. Defence mechanisms push the problems into the unconscious and help transform them into a more socially acceptable form. There are many different …
The statistics are all collected through these two methods, mortality rates and morbidity rates. Death certificates and of the health practitioners, the identification and notification of disease. These reports are then published annually for all to see. These statistics are …
In this essay the claim ‘gender is determined by biology’ will be critically examined. Sociologist’s concern is whether men and women are the product of biological or cultural and environmental factors. They raise the argument for nature versus nurture, as to …
Advocates of the nurture theory feel that it is one’s environment that is of the up most importance. Environment affects human behaviour right from the very beginning of our existence. For example, pregnant women are advised not to smoke or …
In side the nuclear membrane is the nucleoplasm. The nucleoplasm consists of two main substances, which are nucleic acids and proteins. There are two nucleic acids, which are ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). RNA translates the genetic code …
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