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FSC100 Exam – Questions & Proper Answers (Solved)
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FSC100 Exam – Questions & Proper Answers (Solved)
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FSC100 Exam – Questions & Proper Answers (Solved)DNA can be used to discriminate between identical twins Right Ans - false
forensic biology consists of Right Ans - body fluid identification and dna
analysis
serology Right Ans - body fluid identification
Rosalind Franklin Right Ans - Woman who generated x-ray images of DNA,
she povided Watson and Crick with key data about DNA
Sir Alec Jeffreys Right Ans - 1984- first person to make a breakthrough in
DNA exclusion/dna fingerprinting
first dna case? Right Ans - collin pitchfork convicted
-- through sir alec jeffreys contributions
humans inherit ____ chromosomes from each parent for a total of ________
Right Ans - 23 chromosomes from each parent
total of 46
restriction fragment length polymorphisms (rflp's) were discovered by
Right Ans - sir alec jefferys
dna can be extracted from any fluid that has a cell with Right Ans - a
nucleus
prescence of spermatoza Right Ans - indicates sperm
dna profiling Right Ans - second gen tying system (currently used)
- looks at a single locus on a chromosome
dna typing Right Ans - the variety of methods that isolate and extract
sections of dna
dna fingerprinting Right Ans - first-generation typing system
- using rflp's
, short tandem repeats (STRS) Right Ans - - 2 to 5 base pair repeats
popular and current method of dna typing in forensic science
advatages of str analysis Right Ans - - does not require large quantities of
DNA
and the sample can be degraded
- less-time consuming with a high degree of discrimination
short tandem repeat analysis is combined with another technique...
what does this technique do? Right Ans - polymerase chain reaction
-- allows for amplification, or for the unlimited copying of dna from a small
sample
RFLPS are Right Ans - DNA restriction fragments (sections cut out with
enzymes)
the first case in which dna eliminated a suspect Right Ans - 1984 - sir alec
jeffreys
dna fingerprinting is what kind of system? Right Ans - multi-locus
- also time consuming
dna can be extracted from ... Right Ans - sperm, hair with roots, organs,
teeth, skin, sweat
epigenomic variations Right Ans - changes triggered during embryological
development, the reason why identical twins do not have exactly the same dna
the most common way of analyzing fragments of dna (using str method)
Right Ans - electrophoic analysis
combined dna index system is a
consisting of Right Ans - double indexing system
- convicted offender index and the forensic index
Convicted Offender Index Right Ans - contains genetic profiles of convicted
sex offenders and other violent crimes
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