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Proteins and Nucleic Acids

Module by: E. Pennington. E-mail the authorEdited By: E. Pennington

Summary: These are exercise test questions to help build your knowledge of proteins and nucleic acids lectures. This will help expand your knowledge on the topics to maximize learning at a deeper level, build confidence and help you succeed in the course.

Table 1
1. Which of the following is MOST LIKELY an example of a paralog?
A. Hemoglobin A & Hemoglobin F
B. Hemoglobin S and Hemoglobin C
C. Hemoglobin A1 and Hemoglobin A2
D. Myoglobin & Hemoglobin
E. Creatine kinase BB and Creatine kinase MM
Table 2
2. Which of the following is the LEAST LIKELY basic structure of the DNA molecule?
A. Purine Bases: Adenine, Guanine
B. Pyrimidine Bases: Cytosine, Uracil
C. Pyrimidine Bases: Cytosine, Thymine
D. Sugar: Deoxyribose
E. 3' to 5' phosphodiester bond between sugars
Table 3
3. Which of the following structures is LEAST LIKELY a component of the 80S ribosome?
A. 60S rRNA subunit
B. 40S rRNA subunit
C. DNA and proteins
D. rRNA and proteins
E. Binding sites for tRNA

Match the types of RNAs in questions number 4 and 5 with their corresponding structure on the right:

  • 4. mRNA
  • 5. tRNA

Table 4
A. Cloverleaf adapter with 3' adenosine end and an anticodon region.
B. Double stranded helix with hydrogen bonding between the strands.
C. Single stranded with 5' - cap end and polyadenosine tails.
D. Two subunits with secondary structure as a result of extensive base pairing loops.

Table 5
6. In the picture below:graphics1.pngWhich of the following statements is MOST LIKELY the cause of these changes in the human chromosomes?
 
A. Exchanging DNA segments between two chromosomes.
B. Moving segments of DNA to another location in the same gene.
C. Normal synthesis of DNA per genetic code in the human genome of individuals.
D. Synthesis of ds-cDNA from a viral RNA template for integration into the human genome.
E. Breaking and exchanging large portions of the chromosomes due to carcinogens and chemicals.

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