Question

In this assignment, you will write about the applications of DNA technology in forensics, medicine, and agriculture.

Answer 1

Answer:

mtDNA is used when other forms of DNA analysis are not possible because it does not rely on nuclear DNA.

mtDNA may also be useful in missing-person cases.

PCR analysis allows a small amount of DNA to be duplicated into a testing amount.

Y chromosome analysis examines genetic markers that are passed from father to son.

Answer 2

Answer/Explanation:

STR analysis

Short tandem repeats (STRs) are the genetic information present in the FBI's database. These are repetitive regions of the genome, and used for DNA profiling in a variety of applications. They can be used to discriminate between non-related individuals, as people have different numbers of repeating units. A combination of approximately 13 regions are analysed, giving a unique genetic fingerprint

mtDNA analysis

mt DNA is mitochondrial DNA. This type of analysis can trace the maternal lineage of a person, as mitochondrial DNA is inherited from the mother, and is largely unchanged throughout a maternal line. This is often useful when DNA is too degraded to obtain accurate STRs, as there are many more copies of mtDNA in the cell than nuclear DNA. It is also useful for linking missing relatives.