Question 1

Analysis of STRs shows that

Accepted Answer

A)   the more alleles that are analyzed, the more frequent the combinations become in a population.
B)   the more alleles that are analyzed, the rarer the combinations become in a population.
C)   all STR alleles occur at equal frequency..
D)   the usefulness of STRs for DNA profiling is very limited.
E)   None of these are correct.F) A) and C)
G) All of the above

Question 2

DNA analysis of evidence at a crime scene matches the STR pattern of an individual in the CODIS database but the suspect says that he did not commit the crime.He claims that it must have been his twin sister.Explain why his argument is not valid.

Accepted Answer

Based on assumptions behind testing and ...

Question 3

Which of the following DNA elements have NOT been used to develop DNA profiles?

Accepted Answer

A)   minisatellites
B)   STRs
C)   RFLPs
D)   telomeres
E)   All of these have been used to develop DNA profiles.F) C) and E)
G) A) and D)

Question 4

DNA profiles have been developed from the remains of dead people.

Accepted Answer

A) True 
 B)False  True

Question 5

What was the first U.S.court case to challenge the admissibility DNA evidence?

Accepted Answer

A)   Frye v. U.S.
B)   People v. Castro
C)   Narborough Village Murders
D)   Jennifer Thompson-Canino v. Ronald Cotton
E)   Margaret Sackler v. William BernF) B) and E)
G) D) and E)

Question 6

All STRs are located on the X chromosome.

Accepted Answer

A) True 
 B)False

Question 7

The polymerase chain reaction (PCR) uses ____ to amplify a particular stretch of DNA.

Accepted Answer

A)   DNA polymerase
B)   RNA polymerase
C)   restriction enzymes
D)   ribosomes
E)   repeated sequencesF) B) and E)
G) B) and D)

Question 8

Which of the following statements about haplotypes is FALSE?

Accepted Answer

A)   Haplotype analysis can provide information about ancestry.
B)   Each person has the same mtDNA haplotype as his or her mother.
C)   Y chromosomal haplotypes can be used to trace paternal lineage.
D)   Haplotypes are based on differences in DNA sequence.
E)   Haplotypes analysis is only useful to determine paternity.F) C) and D)
G) A) and C) E

Question 9

Why are minisatellites important for DNA analysis?

Accepted Answer

A)   They are useful for determining the sex of the criminal.
B)   Variation in the number of repeats is used in preparing DNA profiles.
C)   They are used when there is no DNA available to analyze.
D)   They can help geneticists determine the inheritance pattern of a trait.
E)   Data from minisatellite analysis is stored in the FBI database.F) None of the above
G) A) and D)

Question 10

MATCHING
Match the appropriate term with the description.
-haplotypes

Accepted Answer

A)  useful for tracking maternal ancestry
B)  passed only from fathers to sons
C)  information stored in CODIS
D)  a series of specific DNA markers
E)  repeated sequences of 10-100 base pairs in lengthF) DNA differences that are only one base pair longG) method to make many copies of a segment of DNAH) analysis using restriction enzymesI) A) and F)
J) A) and D)

Question 11

A DNA sample from an individual is analyzed.The population frequency of one of the STR alleles is 1 in 50,a second STR allele is 1 in 100,and a third STR allele is 1 in 30.What is the combined frequency of these three STR alleles?

Accepted Answer

A)   1 in 150,000
B)   1 in 15,000
C)   1 in 1,500
D)   1 in 180
E)   1 in 50F) All of the above
G) A) and E)

Question 12

Do you think mandatory DNA profiling should be done for all U.S.military personnel? Why or why not? Could this mandatory profiling be considered a violation of the individual's human rights? Explain your answer.

Accepted Answer

Answers will vary but the utility of usi...

Question 13

When an electric current is passed through an agarose gel,the migration of DNA fragments through the gel is based on the number of copies of each fragment.

Accepted Answer

A) True 
 B)False  False

Question 14

Various recommendations have been made concerning DNA profiling of all persons who have committed a felony.Would you consider this a violation of the individual's human rights? Indicate how this type of information could be useful in locating and identifying criminals implicated in future assaults and rapes and in the associated court cases?

Accepted Answer

Answers will vary as to the human rights...

Question 15

Two common techniques used in DNA forensics are restriction fragment length polymorphism analysis and the polymerase chain reaction.

Accepted Answer

A) True 
 B)False

Question 16

MATCHING
Match the appropriate term with the description.
-RFLPs

Accepted Answer

A)  useful for tracking maternal ancestry
B)  passed only from fathers to sons
C)  information stored in CODIS
D)  a series of specific DNA markers
E)  repeated sequences of 10-100 base pairs in lengthF) DNA differences that are only one base pair longG) method to make many copies of a segment of DNAH) analysis using restriction enzymesI) G) and H)
J) E) and G)

Question 17

Analysis of mtDNA or Y chromosomes provides data that allows people to trace their ancestry.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following statements about STRs is FALSE?

Accepted Answer

A)   They are only 2-9 bases long.
B)   Clusters are found widely distributed on all human chromosomes.
C)   Variation in the number of repeats is used in preparing DNA profiles.
D)   They consist of differences in DNA sequences that are only one nucleotide long.
E)   They consist of short repeated nucleotide sequences.F) B) and E)
G) A) and E)

Question 19

____ are repeated sequences of 10-100 base pairs that are used for developing DNA profiles.

Accepted Answer

A)   Minisatellites
B)   STRs
C)   RFLPs
D)   SNPs
E)   Mitochondrial DNAF) C) and D)
G) D) and E)

Question 20

DNA fragments are separated in an agarose gel based on

Accepted Answer

A)   size, with the shortest DNA fragments traveling farthest.
B)   size, with the longest DNA fragments traveling the farthest.
C)   the presence or absence of certain SNPs.
D)   the number of strands in the DNA fragments.
E)   the frequency of particular DNA nucleotides.F) A) and B)
G) A) and C)

Exam 9: DNA Forensics

Analysis of STRs shows that

Correct Answer
verified

DNA analysis of evidence at a crime scene matches the STR pattern of an individual in the CODIS database but the suspect says that he did not commit the crime.He claims that it must have been his twin sister.Explain why his argument is not valid.

Correct Answer
verified
Based on assumptions behind testing and ...
View Answer

Which of the following DNA elements have NOT been used to develop DNA profiles?

Correct Answer
verified

DNA profiles have been developed from the remains of dead people.

Correct Answer
verified
True

What was the first U.S.court case to challenge the admissibility DNA evidence?

Correct Answer
verified

All STRs are located on the X chromosome.

Correct Answer
verified

The polymerase chain reaction (PCR) uses ____ to amplify a particular stretch of DNA.

Correct Answer
verified

Which of the following statements about haplotypes is FALSE?

Correct Answer
verified
E

Why are minisatellites important for DNA analysis?

Correct Answer
verified

MATCHING Match the appropriate term with the description. -haplotypes

Correct Answer
verified

A DNA sample from an individual is analyzed.The population frequency of one of the STR alleles is 1 in 50,a second STR allele is 1 in 100,and a third STR allele is 1 in 30.What is the combined frequency of these three STR alleles?

Correct Answer
verified

Do you think mandatory DNA profiling should be done for all U.S.military personnel? Why or why not? Could this mandatory profiling be considered a violation of the individual's human rights? Explain your answer.

Correct Answer
verified
Answers will vary but the utility of usi...
View Answer

When an electric current is passed through an agarose gel,the migration of DNA fragments through the gel is based on the number of copies of each fragment.

Correct Answer
verified
False

Correct Answer
verified
Answers will vary as to the human rights...
View Answer

Two common techniques used in DNA forensics are restriction fragment length polymorphism analysis and the polymerase chain reaction.

Correct Answer
verified

MATCHING Match the appropriate term with the description. -RFLPs

Correct Answer
verified

Analysis of mtDNA or Y chromosomes provides data that allows people to trace their ancestry.

Correct Answer
verified

Which of the following statements about STRs is FALSE?

Correct Answer
verified

____ are repeated sequences of 10-100 base pairs that are used for developing DNA profiles.

Correct Answer
verified

DNA fragments are separated in an agarose gel based on

Correct Answer
verified

Exam 9: DNA Forensics

Analysis of STRs shows that

Correct AnswerverifiedShow Answer

DNA analysis of evidence at a crime scene matches the STR pattern of an individual in the CODIS database but the suspect says that he did not commit the crime.He claims that it must have been his twin sister.Explain why his argument is not valid.

Correct AnswerverifiedBased on assumptions behind testing and ...View AnswerShow Answer

Which of the following DNA elements have NOT been used to develop DNA profiles?

Correct AnswerverifiedShow Answer

DNA profiles have been developed from the remains of dead people.

Correct AnswerverifiedTrue

What was the first U.S.court case to challenge the admissibility DNA evidence?

Correct AnswerverifiedShow Answer

All STRs are located on the X chromosome.

Correct AnswerverifiedShow Answer

The polymerase chain reaction (PCR) uses ____ to amplify a particular stretch of DNA.

Correct AnswerverifiedShow Answer

Which of the following statements about haplotypes is FALSE?

Correct AnswerverifiedE

Why are minisatellites important for DNA analysis?

Correct AnswerverifiedShow Answer

MATCHING Match the appropriate term with the description. -haplotypes

Correct AnswerverifiedShow Answer

A DNA sample from an individual is analyzed.The population frequency of one of the STR alleles is 1 in 50,a second STR allele is 1 in 100,and a third STR allele is 1 in 30.What is the combined frequency of these three STR alleles?

Correct AnswerverifiedShow Answer

Do you think mandatory DNA profiling should be done for all U.S.military personnel? Why or why not? Could this mandatory profiling be considered a violation of the individual's human rights? Explain your answer.

Correct AnswerverifiedAnswers will vary but the utility of usi...View AnswerShow Answer

When an electric current is passed through an agarose gel,the migration of DNA fragments through the gel is based on the number of copies of each fragment.

Correct AnswerverifiedFalse

Correct AnswerverifiedAnswers will vary as to the human rights...View AnswerShow Answer

Two common techniques used in DNA forensics are restriction fragment length polymorphism analysis and the polymerase chain reaction.

Correct AnswerverifiedShow Answer

MATCHING Match the appropriate term with the description. -RFLPs

Correct AnswerverifiedShow Answer

Analysis of mtDNA or Y chromosomes provides data that allows people to trace their ancestry.

Correct AnswerverifiedShow Answer

Which of the following statements about STRs is FALSE?

Correct AnswerverifiedShow Answer

____ are repeated sequences of 10-100 base pairs that are used for developing DNA profiles.

Correct AnswerverifiedShow Answer

DNA fragments are separated in an agarose gel based on

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
Based on assumptions behind testing and ...
View Answer

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answers will vary but the utility of usi...
View Answer

Correct Answer
verified
False

Correct Answer
verified
Answers will vary as to the human rights...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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