BIOS 100 Exam 3 2025 (Actual Exam) | Complete Questions
and Correct Answers with Rationales | Already Graded A+ |
Verified Answers | Latest Exam
!@#$%%%%%
According to the article "Most White Americans' DNA Can be Identified through Genealogy
%%%%%%
Databases", within two or three years, what percentage of Americans of European descent will
Be identifiable from their DNA?
A. 20 %
B. 40%
C. 60%
D. 80%
E. 90% - (ANSWERS)E. 90%
According to the article "How an Unlikely Family History Website Transformed Cold Case
Investigations", what did Mr. Rogers, one of the founders of gedmatch, currently say about
Issues of privacy concerns with the use of the DNA information on his website?
A. "General users should be allowed to use the site freely, but police should have a search
Warrant to use this material".
B. "Only people who pay the $10 premium for high tier access are allowed to use all the
Resources available, so it is largely a moot point".
C. "I have absolutely no concerns that a person's privacy is violated, because there are so many
People whose DNA helped to get a capture".
D. "The use of this information is strictly regulated by the user agreement everyone signs at the
Beginning of using this site, so everyone's privacy is protected".
E. "The question of privacy is really something for the courts to decide" - (ANSWERS)C. "I have
absolutely no concerns that a person's privacy is violated, because there are so many
People whose DNA helped to get a capture".
The proteome is all the proteins produced by an organism. The genome is the totality of all
genes of an organism. If the proteome is much larger than the genome, which of the following
statements would be accurate?
A. This finding lends support to the one-gene, one-enzyme hypothesis.
B. At least in some cases, a single gene must code for more than one protein.
C. Noncoding DNA is important in determining the proteome.
D. The number of monomeric subunits found in proteins is fewer than the number of
monomeric subunits found in genes. - (ANSWERS)B. At least in some cases, a single gene must
code for more than one protein.
What are the steps (in the correct order) that link a change in the base sequence of a gene to a
change in the phenotype of an organism like a mouse or a human?
A. DNA—>RNA—>Protein
B. DNA—>Protein—>RNA
C. Protein—>RNA—>DNA
D. RNA—>DNA—>Protein - (ANSWERS)A. DNA—>RNA—>Protein
,BIOS 100 Exam 3 2025 (Actual Exam) | Complete Questions
and Correct Answers with Rationales | Already Graded A+ |
Verified Answers | Latest Exam
!@#$%%%%%
The idea that the sequence of bases in DNA specifies the sequence of bases %%%%%%
in an RNA
molecule, which specifies the sequence of amino acids in a protein, is _______.
A. The codon hypothesis
B. The one-gene, one-enzyme hypothesis
C. The central dogma
D. The Neurospora biosynthetic hypothesis
E. The neutral theory - (ANSWERS)C. The central dogma
The process of using the information in mrna to synthesize a protein is ______.
A. Transcendentalism
B. Transacetylation
C. Transmogrification
D. Translation
E. Transcription - (ANSWERS)D. Translation
Given the DNA template shown in the figure above, which of the following bases would you find
in a complementary RNA strand and where would they be synthesized?
A. A-A-A-A-A; nucleus
B. U-U-U-U-U; ribosome
C. U-U-U-U-U; nucleus
D. A-A-A-A-A; ribosome - (ANSWERS)A. A-A-A-A-A; nucleus
Genotype is to _____ as phenotype is to _____.
A. Transcription; amino acid sequence
B. Gene regulation; translation
C. DNA base sequence; physical traits that are products of the proteins produced
D. Heredity; DNA base sequence - (ANSWERS)C. DNA base sequence; physical traits that are
products of the proteins produced
Which of the following is an exception to the central dogma?
A. The discovery of ribozymes
B. The discovery of RNA viruses that synthesize DNA using reverse transcriptase
C. The discovery that the Archaea and Bacteria are more distantly related than are Archaea and
Eukarya
D. The discovery of DNA as the unit of genetic inheritance - (ANSWERS)B. The discovery of RNA
viruses that synthesize DNA using reverse transcriptase
Use the table to sort the following ten codons into one of the three bins, according to whether
they code for a start codon, an in-sequence amino acid, or a stop codon.
, BIOS 100 Exam 3 2025 (Actual Exam) | Complete Questions
and Correct Answers with Rationales | Already Graded A+ |
Verified Answers | Latest Exam
!@#$%%%%%
ACU, UAG, UAA, AUC, UGA, AAA, CAC,UGC, GCA, AUG - (ANSWERS)Start: AUG
Stop codon: UAG, UAA, UGA %%%%%%
Amino Acid: AAA, UGC, GCA, AUC, ACU, CAC
During translation, nucleotide base triplets (codons) in mrna are read in sequence in the 5' → 3'
direction along the mrna. Amino acids are specified by the string of codons. What amino acid
sequence does the following mrna nucleotide sequence specify?
5′−AUGGCAAGAAAA−3′ - (ANSWERS)Met-Ala-Arg-Lys
Before a molecule of mrna can be translated into a protein on the ribosome, the mrna must first
be transcribed from a sequence of DNA.
What amino acid sequence does the following DNA nucleotide sequence specify?
3′−TACAGAACGGTA−5′ - (ANSWERS)Met-Ser-Cys-His
Each codon shown below specifies an amino acid. For which one is it possible that a change in
a single base could create a stop codon?
A. ACC
B. ACA
C. AAA
D. CAC - (ANSWERS)C. AAA
Consider the consequences of a mutation in the DNA template sequence 5'ATG3' to 5'TTG3':
What is (a) the resulting change in the mrna codon and (b) the effect on the corresponding
amino acid?
A. (a) AUG to UUG; (b) Met to Leu
B. (a) UAC to AAC; (b) Tyr to Asn
C. (a) CAU to CAA; (b) No change
D. (a) CAU to CAA; (b) His to Gln - (ANSWERS)D. (a) CAU to CAA; (b) His to Gln
The redundancy of the genetic code is a consequence of ______.
A. Having an equal number of codons and amino acids
B. Having more codons than amino acids
C. Having four different letters (As, Cs, Gs, and Us) in the genetic alphabet
D. Having fewer codons than there are amino acids
E. Having three-letter-long genetic words (codons - (ANSWERS)B. Having more codons than
amino acids
When an amino acid is specified by more than one codon, what is usually shared by the set of
codons that specify this amino acid?
A. The first and second bases
and Correct Answers with Rationales | Already Graded A+ |
Verified Answers | Latest Exam
!@#$%%%%%
According to the article "Most White Americans' DNA Can be Identified through Genealogy
%%%%%%
Databases", within two or three years, what percentage of Americans of European descent will
Be identifiable from their DNA?
A. 20 %
B. 40%
C. 60%
D. 80%
E. 90% - (ANSWERS)E. 90%
According to the article "How an Unlikely Family History Website Transformed Cold Case
Investigations", what did Mr. Rogers, one of the founders of gedmatch, currently say about
Issues of privacy concerns with the use of the DNA information on his website?
A. "General users should be allowed to use the site freely, but police should have a search
Warrant to use this material".
B. "Only people who pay the $10 premium for high tier access are allowed to use all the
Resources available, so it is largely a moot point".
C. "I have absolutely no concerns that a person's privacy is violated, because there are so many
People whose DNA helped to get a capture".
D. "The use of this information is strictly regulated by the user agreement everyone signs at the
Beginning of using this site, so everyone's privacy is protected".
E. "The question of privacy is really something for the courts to decide" - (ANSWERS)C. "I have
absolutely no concerns that a person's privacy is violated, because there are so many
People whose DNA helped to get a capture".
The proteome is all the proteins produced by an organism. The genome is the totality of all
genes of an organism. If the proteome is much larger than the genome, which of the following
statements would be accurate?
A. This finding lends support to the one-gene, one-enzyme hypothesis.
B. At least in some cases, a single gene must code for more than one protein.
C. Noncoding DNA is important in determining the proteome.
D. The number of monomeric subunits found in proteins is fewer than the number of
monomeric subunits found in genes. - (ANSWERS)B. At least in some cases, a single gene must
code for more than one protein.
What are the steps (in the correct order) that link a change in the base sequence of a gene to a
change in the phenotype of an organism like a mouse or a human?
A. DNA—>RNA—>Protein
B. DNA—>Protein—>RNA
C. Protein—>RNA—>DNA
D. RNA—>DNA—>Protein - (ANSWERS)A. DNA—>RNA—>Protein
,BIOS 100 Exam 3 2025 (Actual Exam) | Complete Questions
and Correct Answers with Rationales | Already Graded A+ |
Verified Answers | Latest Exam
!@#$%%%%%
The idea that the sequence of bases in DNA specifies the sequence of bases %%%%%%
in an RNA
molecule, which specifies the sequence of amino acids in a protein, is _______.
A. The codon hypothesis
B. The one-gene, one-enzyme hypothesis
C. The central dogma
D. The Neurospora biosynthetic hypothesis
E. The neutral theory - (ANSWERS)C. The central dogma
The process of using the information in mrna to synthesize a protein is ______.
A. Transcendentalism
B. Transacetylation
C. Transmogrification
D. Translation
E. Transcription - (ANSWERS)D. Translation
Given the DNA template shown in the figure above, which of the following bases would you find
in a complementary RNA strand and where would they be synthesized?
A. A-A-A-A-A; nucleus
B. U-U-U-U-U; ribosome
C. U-U-U-U-U; nucleus
D. A-A-A-A-A; ribosome - (ANSWERS)A. A-A-A-A-A; nucleus
Genotype is to _____ as phenotype is to _____.
A. Transcription; amino acid sequence
B. Gene regulation; translation
C. DNA base sequence; physical traits that are products of the proteins produced
D. Heredity; DNA base sequence - (ANSWERS)C. DNA base sequence; physical traits that are
products of the proteins produced
Which of the following is an exception to the central dogma?
A. The discovery of ribozymes
B. The discovery of RNA viruses that synthesize DNA using reverse transcriptase
C. The discovery that the Archaea and Bacteria are more distantly related than are Archaea and
Eukarya
D. The discovery of DNA as the unit of genetic inheritance - (ANSWERS)B. The discovery of RNA
viruses that synthesize DNA using reverse transcriptase
Use the table to sort the following ten codons into one of the three bins, according to whether
they code for a start codon, an in-sequence amino acid, or a stop codon.
, BIOS 100 Exam 3 2025 (Actual Exam) | Complete Questions
and Correct Answers with Rationales | Already Graded A+ |
Verified Answers | Latest Exam
!@#$%%%%%
ACU, UAG, UAA, AUC, UGA, AAA, CAC,UGC, GCA, AUG - (ANSWERS)Start: AUG
Stop codon: UAG, UAA, UGA %%%%%%
Amino Acid: AAA, UGC, GCA, AUC, ACU, CAC
During translation, nucleotide base triplets (codons) in mrna are read in sequence in the 5' → 3'
direction along the mrna. Amino acids are specified by the string of codons. What amino acid
sequence does the following mrna nucleotide sequence specify?
5′−AUGGCAAGAAAA−3′ - (ANSWERS)Met-Ala-Arg-Lys
Before a molecule of mrna can be translated into a protein on the ribosome, the mrna must first
be transcribed from a sequence of DNA.
What amino acid sequence does the following DNA nucleotide sequence specify?
3′−TACAGAACGGTA−5′ - (ANSWERS)Met-Ser-Cys-His
Each codon shown below specifies an amino acid. For which one is it possible that a change in
a single base could create a stop codon?
A. ACC
B. ACA
C. AAA
D. CAC - (ANSWERS)C. AAA
Consider the consequences of a mutation in the DNA template sequence 5'ATG3' to 5'TTG3':
What is (a) the resulting change in the mrna codon and (b) the effect on the corresponding
amino acid?
A. (a) AUG to UUG; (b) Met to Leu
B. (a) UAC to AAC; (b) Tyr to Asn
C. (a) CAU to CAA; (b) No change
D. (a) CAU to CAA; (b) His to Gln - (ANSWERS)D. (a) CAU to CAA; (b) His to Gln
The redundancy of the genetic code is a consequence of ______.
A. Having an equal number of codons and amino acids
B. Having more codons than amino acids
C. Having four different letters (As, Cs, Gs, and Us) in the genetic alphabet
D. Having fewer codons than there are amino acids
E. Having three-letter-long genetic words (codons - (ANSWERS)B. Having more codons than
amino acids
When an amino acid is specified by more than one codon, what is usually shared by the set of
codons that specify this amino acid?
A. The first and second bases
