Deck 13: Population Statistics

Question 1

Which one correctly describes the building 418 at McKinnon and Toland.

A) a warehouse
B) a sports arena
C) a harbor
D) an airport hanger
E) a business complex
F) All of the above

Answer 1

A

Question 2

What happened to Jenkins when he arrived at this location?

A) He made a phone call for back-up
B) He was shot in the torso by a woman
C) He waited in hiding for the suspect
D) He examined a moored boat that carried skeletal remains in its trawl net
E) He met with Chuck Beamer to discuss the whereabouts of Erica

Answer 2

B

Question 3

What did Chang do when she arrived at 418 Toland?

A) Kicked the weapon out of the assailant's hand
B) Utilized her skills as a kick boxer
C) Caught Jenkins just as he was collapsing from being shot
D) Removed weapon from Jenkin's holster
E) All of the above

Answer 3

E

Question 4

What made Jenkins go to this address?

A) had a gut feeling that it was Mrs. Beamer that was following them when they were at fisherman's wharf
B) had a person telephone in a lead to this address
C) had a message written by Detective Sanders on his desk to go to this address
D) was informed by Sarah Holmes that Mrs. Beamer wanted to meet Jenkins at this address.
E) None of the above

Question 5

After Helen had things under control, Jenkins said, "I'm going to close my eyes." Why did Chang respond by saying, "No, you do NOT close your eyes!"?

A) Fear that the assailant might attack her.
B) Fear that Jenkins would attempt to get up despite his injury.
C) Fear that the police would not respond in time.
D) Fear that he would die.
E) Fear that the assailant might attack Jenkins.

Question 6

How did the shooting incident involving Mrs. Beamer affect the relationship between Jenkins and Chang? Did it draw the two closer together, farther apart, or did it have no effect on their working relationship? Cite evidence.

Question 7

Population statistics attempts to…

A) answer the likelihood that someone other than the victim and suspect left their DNA at a crime scene
B) answer the likelihood that the victim and suspect's DNA are identical
C) determine how rare a genotype is in the population
D) all of the above
E) choice 'a' and 'c' are correct

Question 8

Who was first to apply statistics to genetics?

A) Charles Darwin
B) Craig Venter
C) Gregor Mendel
D) Hardy and Weinberg
E) Alec Jeffreys

Question 9

A Punnett square is…

A) similar to a multiplication table
B) a visual representation of Mendelian inheritance
C) a tool that predicts the ratio of offspring from a parental cross
D) All of the above
E) Choice 'b' and 'c' are correct

Question 10

The Hardy-Weinberg (H-W) Equilibrium means…..

A) a population's gene pool changes over time
B) a population's gene pool remains constant over time
C) a population's gene pool changes every 15 years
D) a population's gene pool cannot be predicted
E) all of the above

Question 11

The H-W equation works with allelic frequencies. An allele is…

A) an alternate form of a phosphate
B) an alternate form of a Punnett square
C) an alternate form of a mathematical formula
D) an alternate form of a gene or genetic locus
E) Choice 'b' and 'd' are correct

Question 12

Alleles are inherited from both parents. Each person will inherit how many alleles of any particular locus (site on a chromosome)?

A) six
B) five
C) four
D) three
E) two

Question 13

If a person inherits the same allele for a particular locus from both parents, the individual is genotyped…

A) Homozygous
B) Heterozygous
C) Homozygous dominant
D) Homozygous recessive
E) Cannot be determined without more information

Question 14

If a person inherits different alleles for a particular locus from both parents, the individual is genotyped…

A) Homozygous
B) Heterozygous
C) Homozygous dominant
D) Homozygous recessive
E) Cannot be determined without more information

Question 15

The frequency of any allele in a population is calculated as…

A) The number of times an allele appears on the "Y" chromosome
B) The number of times an allele appears in a population of alleles
C) The number of times an allele appears on the "X" chromosome
D) The number of times an allele appears in the male population
E) Choice 'c' and 'd' are correct

Question 16

The sum of the allelic frequencies for any particular locus must equal….

A) 5
B) 4
C) 3
D) 2
E) 1

Question 17

An individual has the genotype 14, 15 at a particular STR locus. What do these numbers mean or designate?

A) How many times the STR monomer repeats itself
B) Refers to the chromosome number
C) Genotype is heterozygous
D) Choice 'a' and 'c' are correct
E) Choice 'b' and 'c' are correct

Question 18

Which expression from the Hardy-Weinberg equation best mathematically represents a homozygote individual?

A) p²
B) 2pq
C) q²
D) p² + 2pq + q²
E) both 'a' and 'c' are correct

Question 19

Which formula best represents the H-W equation?

A) p² -2pq + q² = 1
B) p² + 2pq - q² = 1
C) p² + 2pq + q² = 1
D) p² x 2pq x q² = 1
E) both 'a' and 'c' are correct

Question 20

An allele has a frequency of 0.067. How do you convert this frequency into the "one in" statement?

A) 0.067 x 1
B) 0.067 / 1
C) 1 / 0.067
D) 1 + 0.067
E) 1 - 0.067

Question 21

The Hardy-Weinberg equation assumes that the population is in equilibrium. What does that mean?

A) The population is infinitely large
B) Members of the population mate randomly
C) No new mutations arise
D) There is no selection pressure against any particular genotype
E) All of the above

Question 22

The more loci profiled the….

A) more common the DNA frequency will be found in the population
B) greater the chance that the criminal will be set free
C) greater the chance that the defendant will be found guilty
D) greater the chance that the crime will never be solved
E) more unique or more informative the DNA profile is

Question 23

What does the following statement mean: A DNA profile has a frequency of 1:7,000?

A) In a random population, one in every 21,000 people share the same profile.
B) In a random population, one in every 14,000 people share the same profile
C) In a random population, one in every 7,000 people share the same profile
D) In a random population, one in every 3,500 people share the same profile
E) None of the above

Question 24

H-W problem. Given the table below, (a) calculate the genotype frequencies of individuals 1 and 2, (b) convert your answers into the "1 in" statement, and (c) name which individual has the more unique DNA profile? Explain.

Question 25

It is believed a current student at your school was caught stealing a set of laptop computers. The security camera depicted a somewhat blurry image of the perpetrator. The following description was derived from the blurry image. Male, dark hair, athletic jersey, blue jeans, athletic shoes, backpack. Your school has a student body size of 2,526 students, 50% of whom are males, 75% have dark hair, 45% wear athletic jerseys, 70% wear blue jeans, 80% wear athletic shoes, and 30% wear backpacks. How many of the males at this school will be called in for questioning pertaining to this crime committed on the campus? Show work.