Touch DNA is widely used in forensic casework and observed to be of low quantity and degraded quality. Research collecting touch DNA following established activity often fails to consider resolving how much of one’s own DNA is accumulated through endogenous secretion versus exogenous handling. The material from donors’ hands must be parsed appropriately into constituent […]
Forensic Biology & Serology
Y-Chromosome Short Tandem Repeats In Forensics- Sexing , Profiling And Matching Male DNA
The analysis of short tandem repeat markers located on the Y chromosome is an established method in forensic casework analysis. Y chromosome markers are used to assist forensic investigations in rapid sexing of traces, for the identification and profiling of masked male DNA components in mixtures with an excess of female DNA, for tracing male […]
Saliva As A Forensic Evidence
Saliva is a complex biological fluid secreted by acinar cells of the major and minor salivary glands. It is an indicator of various plasma constituents. In recent years, its role as a diagnostic and forensic tool is being increasingly researched upon. Besides maintaining the homeostasis of oral structures such as tooth integrity, it also plays […]
Semen As A Forensic Evidence
Semen is a thick, yellowish white, glairy, opalescent, secretion having a characteristic odour known as seminal odor.It is also called seminal fluid, fluid that is ejaculated from the male reproductive tract and that contains sperm cells, which are capable of fertilizing the female eggs. Semen also contains other liquids, known as seminal plasma, which help […]
Chemical Control and Coordination
In the previous post, we read about Neural Control and Coordination.Let us now talk about chemical control and coordination. Since, the cellular functions need to be continuously regulated. This cellular regulation is carried out by another coordinating system. They use chemical messengers called hormones, which are released by endocrine glands. The endocrine glands release their […]
Neural Control and Coordination
We have studied that a number of physiological processes take place in the body of animals. Digestion, respiration, transportation, excretion, movement and locomotion are major physiological processes occurring in the body. Now, you all must be curious to know that how these complex processes work in a controlled and regulated manner i.e about neural control […]