in forensic science how they are differentiating male female ages handicapped or not using the dna?

Answer 1

To differentiate the gender of a skeleton, you look at three things. First the pelvis, the pelvis of a female is wider, more bowl shaped. Second the weight and size of the bones, males are generally bigger and heavier. Third the forehead of the skull, males have a heavy brow ridge.
Age can be determined a number of ways, certain bones fuse around certain ages, wisdom teeth come in around 18, etc.

Answer 2

Using the DNA evidence one can determine male or female by the presence of a Y chromosome. I don't know of any indication that DNA evidence is being used to determine whether the person was handicapped. Only a limited number of physical and mental handicaps have an identified genetic basis (eg downs syndrome). I doubt it'd be worth the effort to test unless there was other indications that the individual had a genetic condition.

In regards to age: the age of a specific cell can be estimated by telomere length. This requires relatively intact samples. There are better ways to estimate age, based on physical characters of the bones. I doubt DNA is used.

Answer 3

that's what the dna's are for...........they provide u with all th information relating an individual human being or an animal.if u ask how,then i guess u have to do a course in it.

Answer 4

i recognize that it must be used to assist link suspects to against the law scene. in case you want to entice close how they attempt this, that's named gel electrophoresis. the link shows how scientists carry out gel electrophoresis....