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FORENSICS DNA TEST QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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FORENSICS DNA TEST QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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FORENSICS DNA TEST QUESTIONS ANDANSWERS WITH SOLUTIONS 2024
Because DNA is composed of alternating sugar and phosphate molecules, DNA is known as a double
helix. - ANSWER true
Most females have one X and one Y (XY) sex chromosome. - ANSWER false
To calculate the percentage of people who have a particular allele, population studies are conducted to
collect data. - ANSWER true
Humans share common ancestors. Therefore the DNA STR profile of all humans is the same. - ANSWER
false
mtDNA is used to trace ancestry through the female line. - ANSWER true
Except for identical twins, no two people on earth have the same:
a. physical characteristics.
b. DNA.
c. blood group.
d. skeletal type. - ANSWER B. DNA
People are always shedding cells. Therefore DNA can be recovered from:
a. skin cells.
b. saliva
c. semen.
d. a and b only.
e. a and c only.
f. a, b, and c. - ANSWER F. a, b, and c
, The term that describes a picture of homologous pairs of human chromosomes is:
a. karyotype.
b. genetics.
c. archetype.
d. a and b only.
e. All of these choices.
f. None of these choices. - ANSWER A karyotype
The 95 percent of noncoding DNA is involved in:
a. blueprint production.
b. genetic material.
c. cell regulation.
d. DNA fingerprinting. - ANSWER C. cell regulation
If one person has two alleles that are the same for a specific STR, then that person is considered to have:
a. rare occurring alleles.
b. heterozygous genotypes.
c. frequently occurring alleles.
d. homozygous genotypes. - ANSWER D. homozygouss genotypes
James Watson and Francis Crick received the 1953 Nobel Prize for their work on describing the structure
of DNA as:
a. a double helix that resembles a twisted ladder.
b. a helix that resembles a twisted ladder.
c. a triple helix that resembles a twisted ladder.
d. None of these choices. - ANSWER A. a double helix that resembles a twisted ladder
Which chromosomes have the same shape and contain the same genes?
a. genes
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