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GENETICS CHAPTER 18 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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GENETICS CHAPTER 18 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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GENETICS CHAPTER 18 QUESTIONSAND ANSWERS WITH SOLUTIONS 2024
The parts of the genome that are used in markers of identity in DNA profiling
A) are in Hardy-Weinberg equilibrium and therefore not affected by natural selection acting on a
phenotype.
B) are in Hardy-Weinberg equilibrium and therefore not affected by natural selection acting on a
genotype.
C) are not in Hardy-Weinberg equilibrium and therefore not affected by natural selection acting on a
phenotype.
D) are not in Hardy-Weinberg equilibrium and therefore not affected by natural selection acting on a
genotype. - ANSWER A) are in Hardy-Weinberg equilibrium and therefore not affected by natural
selection acting on a phenotype.
VNTRs and STRs differ in that
A) a VNTR repeat is shorter than an STR repeat.
B) a VNTR repeat is longer than an STR repeat.
C) a VNTR is a type of copy number variant and an STR is not.
D) an STR is a type of copy number variant and a VNTR is not. - ANSWER B) a VNTR repeat is longer than
an STR repeat.
Researchers began using short tandem repeats (STRs) because
A) shorter DNA molecules were more likely to persist in a violent situation.
B) each person has no more than one copy of each STR.
C) STRs are nonuniformly distributed.
D) restrictive enzymes cannot be used to cut short DNA molecules. - ANSWER A) shorter DNA molecules
were more likely to persist in a violent situation.
DNA analysis to determine genetic identity applies
A) Mendel's law of independent assortment and the product rule.
B) Mendel's law of segregation and the product rule.
C) the law of polymorphism.
, D) Darwin's mathematical principles. - ANSWER A) Mendel's law of independent assortment and the
product rule.
Which of the following have the longest DNA sequences?
A) VNTRs
B) STRs
C) Thymine dimers
D) Base pairs - ANSWER A) VNTRs
A common source of DNA for forensic testing is
A) the skin between the toes.
B) cells scraped from inside the cheek.
C) red blood cells.
D) mucus. - ANSWER B) cells scraped from inside the cheek.
Who invented DNA profiling?
A) Godfrey Hardy
B) William Weinberg
C) Sir Alec Jeffreys
D) Linus Pauling - ANSWER C) Sir Alec Jeffreys
A series of markers have the following frequencies. Which would be the most useful for DNA profiling?
A) 1/60
B) 1/5200
C) 1/500
D) 1/40 - ANSWER B) 1/5200
A suspect's guilt seems highly likely when a rare combination of markers is
A) found in the population the suspect comes from and at the crime scene.
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