©JUSTTRACY EXAM SOLUTIONS
07/11/2024 11:50
BIO 340 Exam Questions And Revised Answers
Your chromosomes are located _______ and they are made of ___________ .
a. floating in the cytoplasm, lipids
b. in the cell membrane, protein
c. inside the mitochondria, genes
d. inside the cytoplasm, protein
e. inside the nucleus, DNA - answers✔✔e. inside the nucleus, DNA
A nucleotide is made of _______.
a. sugar + phosphate
b. sugar + phosphate + nitrogen base
c. sugar + nitrogen base
d. phosphate + nitrogen base - answers✔✔b. sugar + phosphate + nitrogen base
A molecule of RNA (ribonucleic acid) contains the bases _______.
a. adenine, guanine, thymine, and uracil
b. uracil, adenine, guanine, and adenosine
c. thymine, adenine, guanine, and cytosine
d. adenine, guanine, cytosine, and uracil - answers✔✔d. adenine, guanine, cytosine, and
uracil
Which of the following does cytosine pair with?
a. Guanine
b. Thymine
c. Adenine
d. Uracil - answers✔✔a. Guanine
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 11:50
Prokaryotes contain a _________ chromosome, and eukaryotes contain ________
chromosomes.
a. single-stranded circular; single-stranded linear
b. single-stranded linear; single-stranded circular
c. double-stranded circular; double stranded linear
d. double-stranded linear; double-stranded circular - answers✔✔c. double-stranded circular;
double stranded linear
How long would the peptide be that is translated from this mRNA sequence: 5'-
AUGGGCUACCGA -3'?
a. 0 amino acids
b. 2 amino acids
c. 3 amino acids
d. 4 amino acids - answers✔✔d. 4 amino acids
What is the correct sequence of steps in the central dogma?
a. RNA->DNA->Protein
b. RNA->Protein->DNA
c. DNA->RNA->Protein
d. DNA->Protein->RNA - answers✔✔c. DNA->RNA->Protein
Where does transcription take place in human cells?
a. Nucleoid
b. Nucleus
c. Cytoplasm
d. Nucleosome - answers✔✔b. Nucleus
Where does translation take place in eukaryotic cells?
a. Nucleoid
b. Nucleus
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 11:50
c. Cytoplasm
d. Nucleosome - answers✔✔c. Cytoplasm
Transcribe the following DNA sequence (non template strand): 5'-
ATGGCCGGTTATTAAGCA-3'
a. 5'-ACGAATTATTGGCCGGTA-3'
b. 5'-TACCGGCCAATAATTCGT-3'
c. 5'-ATGGCCGGTTATTAAGCA-3'
d. 5'-AUGGCCGGUUAUUAAGCA-3' - answers✔✔d. 5'-AUGGCCGGUUAUUAAGCA-3'
In which of the following pairs do both evolutionary processes introduce new genetic
variation into a population?
a. Natural selection and genetic drift
b. Mutation and gene flow
c. Natural selection and gene flow
d. Gene flow and genetic drift - answers✔✔b. Mutation and gene flow
Mutation can be defined as the addition of genetic variation that increases the hereditary
diversity of a population.
a. True
b. False - answers✔✔a. True
If an allele has a frequency of 1:
a. It is found in 50% of the population
b. It is found in 25% of the population
c. It is found in 100% of the population
d. It is found in 0% of the population - answers✔✔c. It is found in 100% of the population
07/11/2024 11:50
BIO 340 Exam Questions And Revised Answers
Your chromosomes are located _______ and they are made of ___________ .
a. floating in the cytoplasm, lipids
b. in the cell membrane, protein
c. inside the mitochondria, genes
d. inside the cytoplasm, protein
e. inside the nucleus, DNA - answers✔✔e. inside the nucleus, DNA
A nucleotide is made of _______.
a. sugar + phosphate
b. sugar + phosphate + nitrogen base
c. sugar + nitrogen base
d. phosphate + nitrogen base - answers✔✔b. sugar + phosphate + nitrogen base
A molecule of RNA (ribonucleic acid) contains the bases _______.
a. adenine, guanine, thymine, and uracil
b. uracil, adenine, guanine, and adenosine
c. thymine, adenine, guanine, and cytosine
d. adenine, guanine, cytosine, and uracil - answers✔✔d. adenine, guanine, cytosine, and
uracil
Which of the following does cytosine pair with?
a. Guanine
b. Thymine
c. Adenine
d. Uracil - answers✔✔a. Guanine
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 11:50
Prokaryotes contain a _________ chromosome, and eukaryotes contain ________
chromosomes.
a. single-stranded circular; single-stranded linear
b. single-stranded linear; single-stranded circular
c. double-stranded circular; double stranded linear
d. double-stranded linear; double-stranded circular - answers✔✔c. double-stranded circular;
double stranded linear
How long would the peptide be that is translated from this mRNA sequence: 5'-
AUGGGCUACCGA -3'?
a. 0 amino acids
b. 2 amino acids
c. 3 amino acids
d. 4 amino acids - answers✔✔d. 4 amino acids
What is the correct sequence of steps in the central dogma?
a. RNA->DNA->Protein
b. RNA->Protein->DNA
c. DNA->RNA->Protein
d. DNA->Protein->RNA - answers✔✔c. DNA->RNA->Protein
Where does transcription take place in human cells?
a. Nucleoid
b. Nucleus
c. Cytoplasm
d. Nucleosome - answers✔✔b. Nucleus
Where does translation take place in eukaryotic cells?
a. Nucleoid
b. Nucleus
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 11:50
c. Cytoplasm
d. Nucleosome - answers✔✔c. Cytoplasm
Transcribe the following DNA sequence (non template strand): 5'-
ATGGCCGGTTATTAAGCA-3'
a. 5'-ACGAATTATTGGCCGGTA-3'
b. 5'-TACCGGCCAATAATTCGT-3'
c. 5'-ATGGCCGGTTATTAAGCA-3'
d. 5'-AUGGCCGGUUAUUAAGCA-3' - answers✔✔d. 5'-AUGGCCGGUUAUUAAGCA-3'
In which of the following pairs do both evolutionary processes introduce new genetic
variation into a population?
a. Natural selection and genetic drift
b. Mutation and gene flow
c. Natural selection and gene flow
d. Gene flow and genetic drift - answers✔✔b. Mutation and gene flow
Mutation can be defined as the addition of genetic variation that increases the hereditary
diversity of a population.
a. True
b. False - answers✔✔a. True
If an allele has a frequency of 1:
a. It is found in 50% of the population
b. It is found in 25% of the population
c. It is found in 100% of the population
d. It is found in 0% of the population - answers✔✔c. It is found in 100% of the population
