CHE113SER5

CHE113SER5 - * ii- This genotype produces no protein (type...

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CHE113 Forensic Science Nicolas Canel Forensic Serology Blood Clots -When blood vessels are cut or damaged, the loss of blood from the system must be stopped before shock and possible death occur. This is accomplished by solidification of the blood, a process called coagulation or clotting. A blood clot consists of * a plug of platelets enmeshed in a * network of insoluble fibrin molecules. -Inactivated platelets (smooth) and activated (spiky) Blood Type Genetics -Three forms of the gene ( alleles ) that control the ABO blood group, designated as i A , i B , and i . -Two alleles (one from the mother and one from the father) form a persons genotype . The inheritance of the alleles is co-dominant - if the allele is present, it gets expressed. The following genotypes will yield these blood types: * i A i A or i A i - Both genotypes produce the A protein (type A). * i B i B or i B i - Both genotypes produce the B protein (type B). * i A i B - This genotype produces the A and B protein (type AB).
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Unformatted text preview: * ii- This genotype produces no protein (type O). -Blood type does not necessarily tell you which alleles you have. It is possible for two parents with the same blood type (A or B) to have a child with type O blood. ------Both parents would have to have a mixed genotype, such as one i allele together with either one i A or one i B allele. i A i A or i A i- Both genotypes produce the A protein (type A). * i B i B or i B i- Both genotypes produce the B protein (type B). * i A i B- This genotype produces the A and B protein (type AB). * ii- This genotype produces no protein (type O). Blood Types – Paternity i A i A or i A i- Both genotypes produce the A protein (type A). i B i B or i B i- Both genotypes produce the B protein (type B). i A i B- This genotype produces the A and B protein (type AB). ii- This genotype produces no protein (type O)....
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This note was uploaded on 03/02/2012 for the course CHE 113 taught by Professor Spencer during the Spring '08 term at Syracuse.

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