LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which would provide the least genetic evidence of a crime?
A
fingerprints
B
saliva
C
hair
D
blood
Explanation: 

Detailed explanation-1: -One of the most common sources of DNA at a crime scene is a bodily fluid. Blood, saliva, sweat, urine and semen can readily provide DNA information at crime scenes, as can just about any other substance secreted or excreted by the body.

Detailed explanation-2: -Advanced DNA technology, such as PCR, makes it possible to obtain conclusive results in cases in which previous testing might have been inconclusive. This can result in the identification of suspects in previously unsolvable cases or the exoneration of those wrongfully convicted.

Detailed explanation-3: -Fingerprints provide no information about a person other than identity. DNA typing can, in principle, also provide personal information-concerning medical characteristics, physical traits, and relatedness-that carries with it risks of discrimination.

There is 1 question to complete.