Question 1

Approximately ________ of the foods in American grocery stores contain at least small amounts of GMOs.

Accepted Answer

A)  less than 10% 
B)  25% 
C)  50% 
D)  over 75% 
A)  less than 10% 
B)  25% 
C)  50% 
D)  over 75% C

Question 2

Which of the following always contain three nucleotides?

Accepted Answer

A)  tRNA 
B)  an anticodon 
C)  mRNA 
D)  ribosome 
A)  tRNA 
B)  an anticodon 
C)  mRNA 
D)  ribosome B

Question 3

Which of the following pairs with adenine in a DNA molecule?

Accepted Answer

A)  cytosine 
B)  thymine 
C)  uracil 
D)  guanine 
A)  cytosine 
B)  thymine 
C)  uracil 
D)  guanine B

Question 4

Which statement best describes how the FDA regulates the food industry?

Accepted Answer

A)  All new foods developed by industry, whether they contain new products or old products, are put through a rigorous testing program by the FDA. 
B)  Newly developed foods or food additives must be certified safe by the FDA before they can be marketed to the public. 
C)  Foods must be clearly labeled in accordance with FDA guidelines to indicate whether they're naturally occurring or genetically modified food products. 
D)  New foods can be marketed without FDA approval until there is a clear health issue with the food. 
A)  All new foods developed by industry, whether they contain new products or old products, are put through a rigorous testing program by the FDA. 
B)  Newly developed foods or food additives must be certified safe by the FDA before they can be marketed to the public. 
C)  Foods must be clearly labeled in accordance with FDA guidelines to indicate whether they're naturally occurring or genetically modified food products. 
D)  New foods can be marketed without FDA approval until there is a clear health issue with the food.

Question 5

What is the sequence of the mRNA made from the gene TTACAGGTCC?

Accepted Answer

A)  UUACAGGUCC 
B)  AATGTCCAGG 
C)  AAUGUCCAGG 
D)  GGAGTGGACC 
A)  UUACAGGUCC 
B)  AATGTCCAGG 
C)  AAUGUCCAGG 
D)  GGAGTGGACC

Question 6

Which of the following "unzips" the double helix of DNA?

Accepted Answer

A)  an anticodon 
B)  mRNA 
C)  tRNA 
D)  RNA polymerase 
A)  an anticodon 
B)  mRNA 
C)  tRNA 
D)  RNA polymerase

Question 7

In genetics, palindromes refer to

Accepted Answer

A)  the types of DNA sequences that are cut out by restriction enzymes. 
B)  the A-T complementary bases of DNA. 
C)  the C-G complementary bases of DNA. 
D)  the A-U base pairing between DNA and mRNA. 
A)  the types of DNA sequences that are cut out by restriction enzymes. 
B)  the A-T complementary bases of DNA. 
C)  the C-G complementary bases of DNA. 
D)  the A-U base pairing between DNA and mRNA.

Question 8

Gene regulation in eukaryotic cells includes

Accepted Answer

A)  activators that help RNA polymerase bind to the promoter. 
B)  repressors that prevent DNA polymerase from binding. 
C)  activation of the X chromosome. 
D)  degradation of nucleases by mRNA. 
A)  activators that help RNA polymerase bind to the promoter. 
B)  repressors that prevent DNA polymerase from binding. 
C)  activation of the X chromosome. 
D)  degradation of nucleases by mRNA.

Question 9

Ribosomes are made of subunits that are composed of

Accepted Answer

A)  mRNA and DNA. 
B)  tRNA and mRNA. 
C)  rRNA and proteins. 
D)  DNA and proteins. 
A)  mRNA and DNA. 
B)  tRNA and mRNA. 
C)  rRNA and proteins. 
D)  DNA and proteins.

Question 10

When genes are copied (in transcription), the resulting copy is in the form of a

Accepted Answer

A)  complementary strand of DNA. 
B)  strand of mRNA. 
C)  molecule of tRNA. 
D)  palindrome. 
A)  complementary strand of DNA. 
B)  strand of mRNA. 
C)  molecule of tRNA. 
D)  palindrome.

Question 11

If a DNA sequence of a gene reads, in part, TAACAGGTCA, what is the sequence of the complementary strand of DNA?

Accepted Answer

A)  ATTGTCCAGT 
B)  AUUGUCCAGU 
C)  UUACAGGUCC 
D)  CTTGTGGACC 
A)  ATTGTCCAGT 
B)  AUUGUCCAGU 
C)  UUACAGGUCC 
D)  CTTGTGGACC

Question 12

The GRAS designation made by the FDA stands for

Accepted Answer

A)  "genetic research and support." 
B)  "genome recognized and studied." 
C)  "genetically recombined and synthesized." 
D)  "generally regarded as safe." 
A)  "genetic research and support." 
B)  "genome recognized and studied." 
C)  "genetically recombined and synthesized." 
D)  "generally regarded as safe."

Question 13

The process of copying a sequence of DNA nucleotides into a complementary sequence of RNA nucleotides is called

Accepted Answer

A)  translation. 
B)  mutation. 
C)  transcription. 
D)  excision. 
A)  translation. 
B)  mutation. 
C)  transcription. 
D)  excision.

Question 14

A double-stranded DNA molecule that has 22% guanine will have

Accepted Answer

A)  22% thymine. 
B)  22% cytosine. 
C)  44% adenine. 
D)  48% thymine. 
A)  22% thymine. 
B)  22% cytosine. 
C)  44% adenine. 
D)  48% thymine.

Question 15

Genetically modified foods have resulted in

Accepted Answer

A)  rice that allows greater synthesis of vitamin A. 
B)  calorie-free potato chips. 
C)  a tomato that tastes like a melon. 
D)  lettuce that doesn't require water to grow. 
A)  rice that allows greater synthesis of vitamin A. 
B)  calorie-free potato chips. 
C)  a tomato that tastes like a melon. 
D)  lettuce that doesn't require water to grow.

Question 16

The famous sheep "Dolly" was the result of

Accepted Answer

A)  therapeutic cloning. 
B)  the Human Genome Project. 
C)  stem cell research. 
D)  nuclear transfer. 
A)  therapeutic cloning. 
B)  the Human Genome Project. 
C)  stem cell research. 
D)  nuclear transfer.

Question 17

-Which of the following pairs includes items that aren't analogous according to this figure?

Accepted Answer

A)  protein; cake 
B)  amino acids; flour, sugar, and eggs 
C)  tRNA; copy of recipe 
D)  genome in nucleus; cookbook on shelf 
A)  protein; cake 
B)  amino acids; flour, sugar, and eggs 
C)  tRNA; copy of recipe 
D)  genome in nucleus; cookbook on shelf

Question 18

Which of the following is least likely to be genetically modified?

Accepted Answer

A)  microwave popcorn 
B)  potato chips 
C)  a candy bar 
D)  a head of broccoli 
A)  microwave popcorn 
B)  potato chips 
C)  a candy bar 
D)  a head of broccoli

Question 19

The $\beta$-carotene was inserted into GM golden rice to allow a person to

Accepted Answer

A)  better synthesize proteins in the body. 
B)  see better under low light conditions. 
C)  more efficiently digest his or her starchy diet. 
D)  better synthesize vitamin A in the body. 
A)  better synthesize proteins in the body. 
B)  see better under low light conditions. 
C)  more efficiently digest his or her starchy diet. 
D)  better synthesize vitamin A in the body.

Question 20

When a mutation results in no significant change in the production of a functional protein, it's called a

Accepted Answer

A)  frameshift mutation. 
B)  substitution mutation. 
C)  normal mutation. 
D)  neutral mutation. 
A)  frameshift mutation. 
B)  substitution mutation. 
C)  normal mutation. 
D)  neutral mutation.

Exam 9: Genetically Modified Organisms: Gene Expression, Mutation, and Cloning

Approximately ________ of the foods in American grocery stores contain at least small amounts of GMOs.

Which of the following always contain three nucleotides?

Which of the following pairs with adenine in a DNA molecule?

Which statement best describes how the FDA regulates the food industry?

What is the sequence of the mRNA made from the gene TTACAGGTCC?

Which of the following "unzips" the double helix of DNA?

In genetics, palindromes refer to

Gene regulation in eukaryotic cells includes

Ribosomes are made of subunits that are composed of

When genes are copied (in transcription), the resulting copy is in the form of a

If a DNA sequence of a gene reads, in part, TAACAGGTCA, what is the sequence of the complementary strand of DNA?

The GRAS designation made by the FDA stands for

The process of copying a sequence of DNA nucleotides into a complementary sequence of RNA nucleotides is called

A double-stranded DNA molecule that has 22% guanine will have

Genetically modified foods have resulted in

The famous sheep "Dolly" was the result of

-Which of the following pairs includes items that aren't analogous according to this figure?

Which of the following is least likely to be genetically modified?

The β\betaβ -carotene was inserted into GM golden rice to allow a person to

When a mutation results in no significant change in the production of a functional protein, it's called a

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