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BIOLOGY 230 FINAL EXAM QUESTIONS WITH SOLVED SOLUTIONS

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BIOLOGY 230 FINAL EXAM QUESTIONS WITH SOLVED SOLUTIONS

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What is the plus end of a microtubule?


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The end from which growth occurs




17. All the information below is correct about chromosome, except...
a. Bacterial genomes consist of a single double stranded chromosome
b. It has the physical embodiment of information storage and transmission across
generations
c. The chromosome pairs are identical and often contain different alleles
d. Eukaryotes have multiple chromosomes, however, prokaryotes typically have a
single chromosome
e. None of above


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, d. Eukaryotes have multiple chromosomes, however, prokaryotes typically
have a single chromosome




16. Which of the following is NOT correct for DNA microarray? e
a. It can be used to monitor gene expression of thousands of genes
b. mRNA is complementary to the gene it was transcribed from
c. mRNA provides a means of chemically matching mRNA information to its
corresponding gene
d. It can be utilized to identify and quantify amount of mRNA
e. mRNA is first converted to cDNA which is less stable than mRNA
f. none of above
g. All of above


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e. mRNA is first converted to cDNA which is less stable than mRNA




How does amplification of a signal is achieved in the signal transduction by GPCR?
a. Multiple activated G-proteins can be created while a ligand is bound.
b. Gα subunit prevents the hydrolyzation of GTP to GDP.
c. Multiple cAMP are created for each activated G-protein.
d. A and C
e. B and C


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d. A and C




Comparing protein structures of transcription factors (TFs), we find that multiple TFs
share a region with a common structure. What is the likely function of this structure?

,a. It is the DNA binding domain
b. It recognizes the codon
c. It is the corepressor domain
d. It is the activation domain
e. All of the above


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a. It is the DNA binding domain




Which of the following options are correct? ____? e
a. Disruption of protein interactions responsible for its correct folding may cause
denaturation or unfolding (usually inactivating the protein)
b. Ribosomes from bacteria recognize a specific AUG as start codon with the aid of
a. the upstream Shine Dalgarno sequence
c. Tertiary structure ultimately forms exposed regions or grooves in the molecule of
protein
d. A quaternary structure occurs in the case of proteins with more than one
polypeptide
e. All above.


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e. All above




9. How do metabolites harness their energetically-rich bonds to fuel other cellular
processes?


a. by bonding with metabolites that are more reactive
b. by releasing their inherent energy as heat to fuel other processes
c. by participating in redox reactions that transfer energy from bonds to electron
carriers
d. by working out at the Co-Rec

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c. by participating in redox reactions that transfer energy from bonds to
electron carriers




3. Which process(es) produce NADH? f
a) Anaerobic oxidation
b) Glycolysis
c) Oxidative phosphorylation
d) Citric acid cycle
e) c and d
f) b and d
g) a and b


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f) b and d




19. What of the statements below is NOT correct?
a. CRISPR is the abbreviation for Clustered Regularly Interspaced Short Palindromic
Repeats
b. Using proteomics scientist can study the total protein content of a cell
c. Proteomics is related to the analysis of all metabolic reaction happening at a given
time in a cell.
d. CRISPR pathway acts essentially as an immune system in bacteria.
e. All of above


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