Question 1

What chemical does the TAS2R38 gene code for a protein that binds to?

Accepted Answer

PTC

Answer

Sucrose

Answer

Fructose

Answer

Glucose

Question 2

What year was the TAS2R38 gene identified?

Accepted Answer

2003

Answer

2020

Answer

1998

Answer

2010

Question 3

What would be the genotype of a person who cannot taste PTC?

Accepted Answer

tt

Answer

TT

Answer

AA

Answer

Tt

Question 4

What is the purpose of PCR in this experiment?

Accepted Answer

Analyze DNA for specific genes

Answer

Create proteins

Answer

Extract DNA from cheek cells

Answer

Cut DNA at specific sequences

Question 5

How many SNPs differentiate taster and non-taster alleles?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 6

What kind of trait is PTC tasting ability considered?

Accepted Answer

Mendelian

Answer

Epigenetic

Answer

Polygenic

Answer

X-linked

Question 7

Where are taste receptors located?

Accepted Answer

Tongue

Answer

Ears

Answer

Nose

Answer

Stomach

Question 8

Which of these is NOT a flavor sensed by taste receptors?

Accepted Answer

Spice

Answer

Bitter

Answer

Sweet

Answer

Umami

Question 9

How many base pairs long is the TAS2R38 gene?

Accepted Answer

1143

Answer

100

Answer

2000

Answer

500

Question 10

Which restriction enzyme is used in this experiment?

Accepted Answer

HaeIII

Answer

EcoRI

Answer

HindIII

Answer

BamHI

Question 11

What is the purpose of gel electrophoresis in this experiment?

Accepted Answer

Separate DNA fragments

Answer

Amplify DNA

Answer

Synthesize DNA

Answer

Visualize DNA sequences

Question 12

Which SNP position is associated with an amino acid change?

Accepted Answer

All of the above

Answer

886

Answer

785

Answer

145

Question 13

Where are the TAS2R38 gene and other bitter taste receptor genes located?

Accepted Answer

Chromosome 7

Answer

Chromosome 1

Answer

Chromosome 12

Answer

Chromosome 5

Question 14

Which of these describes a change caused by a SNP?

Accepted Answer

A codon is altered

Answer

A gene is deleted

Answer

An entire genome changes

Answer

A chromosome is duplicated

Question 15

What would the expected band pattern be for a heterozygous taster?

Accepted Answer

3 bands

Answer

1 band

Answer

4 bands

Answer

2 bands

Question 16

What process in the cell creates neurotransmitters?

Accepted Answer

Translation

Answer

Replication

Answer

Photosynthesis

Answer

Transcription

Question 17

The ability to taste PTC is an example of...

Accepted Answer

Genetic variation

Answer

Learned behavior

Answer

Environmental influence

Answer

Cellular mutation

Question 18

Changes in taste sensitivity over time could be due to...

Accepted Answer

All of the above

Answer

Aging

Answer

Diet

Answer

Illness

Question 19

What is the purpose of wearing gloves during the lab?

Accepted Answer

Prevent contamination

Answer

Prevent burns

Answer

Improve grip

Answer

Reduce mess

Question 20

What does the term "phenotype" refer to?

Accepted Answer

Observable traits

Answer

Protein structure

Answer

Number of chromosomes

Answer

Genetic makeup

Question 21

Which of these is a safety hazard when working with a PCR machine?

Accepted Answer

Hot surfaces

Answer

Chemical exposure

Answer

Noise pollution

Answer

Electrical shock

Question 22

The visible bumps on the tongue are called...

Accepted Answer

Papillae

Answer

Nerves

Answer

Taste buds

Answer

Microvilli

Question 23

Which sense interacts with taste to create the perception of flavor?

Accepted Answer

Smell

Answer

Hearing

Answer

Touch

Answer

Sight

Question 24

What is the term for a gene having two or more alternative forms?

Accepted Answer

Allele

Answer

Genotype

Answer

Polymorphism

Answer

Mutation

Question 25

Approximately how many SNPs are present in the human genome?

Accepted Answer

10 million

Answer

1 million

Answer

100 thousand

Answer

100 million

Question 26

What type of inheritance pattern does PTC tasting follow?

Accepted Answer

Simple dominance

Answer

Codominance

Answer

Incomplete dominance

Answer

Sex-linked

Question 27

Why is agarose gel used in gel electrophoresis?

Accepted Answer

Visualize DNA bands

Answer

Amplify DNA

Answer

Stain DNA

Answer

Cut DNA

Question 28

The concept of personalized medicine relates to...

Accepted Answer

Using genetics in healthcare

Answer

Designing custom diets

Answer

Developing new drugs

Answer

Treating rare diseases

Question 29

DNA sequences that differ by a single nucleotide are called...

Accepted Answer

Polymorphisms

Answer

Introns

Answer

Mutations

Answer

Exons

Question 30

What is the purpose of washing hands after the experiment?

Accepted Answer

Remove biological hazards

Answer

Improve skin softness

Answer

Prevent staining

Answer

Reduce odor

Question 31

What type of biological molecule is a restriction enzyme?

Accepted Answer

Protein

Answer

Carbohydrate

Answer

Lipid

Answer

Nucleic acid

Question 32

Where within the cell is genomic DNA located?

Accepted Answer

Nucleus

Answer

Mitochondria

Answer

Cytoplasm

Answer

Cell wall

Question 33

The three possible genotypes for PTC tasting are...

Accepted Answer

TT, Tt, tt

Answer

PP, Pp, pp

Answer

AA, Aa, aa

Answer

XX, XY, YY

Question 34

Which of these situations could make experimental results less reliable?

Accepted Answer

All of the above

Answer

Not following instructions

Answer

Equipment malfunction

Answer

Using old reagents

Question 35

Why might scientists be interested in studying PTC tasting?

Accepted Answer

All of the above

Answer

To learn about genetic variation

Answer

To develop new flavorings

Answer

To identify supertasters

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