In this essay I will examine some of the different ideas which are expressed through two of the leading theories in the field of developmental psychology. These are; Piaget’s constructivist theory of cognitive development and Vygotsky’s sociocultural theory of cognitive …
There are huge numbers of macromolecules and molecules found in a cell, but they mainly have one thing in common: Carbon. Carbon is the most prevalent element in all organic life. It has a valency of 4, which makes it …
As can be seen from the above table, the name of the nucleotide depends on which of the nucleosides it contains and where the phosphate is attached to the ring of the sugar. For example, a nucleotide which contains adenine …
It seems that there is not a global agreement on the structure components of the Limbic System. Therefore a brief history will be given next with the intention to make more understandable the role of the limbic system. However the …
Locard’s Principle of Exchange states that when any person comes into contact with an object or another person, a cross-transfer of physical evidence occurs. The identification of that physical evidence has been the pivotal point in forensic work since Francis …
Another method of DNA typing is Short Tandem Repeat (STR), which uses shorter repeat units of DNA nucleotide sequences of 2 to 5 base pair units in length. They are found throughout the chromosomes in vast quantities, increasing the availability …
As the basis for DNA analysis, there are only a small fraction of sequences that differ between individuals in a given population and the value of the DNA tests lies in the discriminatory ability. Once DNA samples from evidence and …
Many crime labs throughout the US had been collecting and storing biological samples for years but did not have the technology, manpower, or funding to analyze and enter their offender’s DNA profile into a searchable database. Legislation had begun requiring …
With the dawn of the 21st century upon us, the study of modern genetics has accelerated in all areas of science. The overload of the Internet, television, newspapers and other media sources has meant that the majority of the public …
For the purposes of this essay, “human cloning” will refer to human reproductive cloning involving somatic cell nuclear transfer (explained later), rather than therapeutic human cloning, which involves the use of pluripotent stem cells. Advances in cloning research have used …
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