2nd Year Biology Second half Book Paper

Q1. Multiple choice questions (Attempt all · 17 × 1 = 17)

1. Which type of antibiotic inhibits bacterial cell wall synthesis?
   1. Tetracyclines
   2. Penicillins
   3. Sulfonamides
   4. Fluoroquinolones
2. The two types of homology discussed in this section are:
   1. Genetic and metabolic homology
   2. Sequence and structure homology
   3. Plant and animal homology
   4. Behavioral and ecological homology
3. Which enzyme in sweat helps to break down bacterial cell walls?
   1. Amylase
   2. Lysozyme
   3. Pepsin
   4. Lipase
4. Which scientific field studies the complete set of DNA of an organism, including all of its genes?
   1. Proteomics
   2. Transcriptomics
   3. Genomics
   4. Metabolomics
5. Biotechnology can be defined as the use of:
   1. Metals
   2. Microorganisms
   3. Animals
   4. Air
6. Which human activity leads to enhanced greenhouse effect?
   1. Transportation and burning fossil fuels
   2. Photosynthesis in plants
   3. Recycling of waste
   4. Planting trees
7. If the number of values is even, median is:
   1. The middle value
   2. Average of two middle values
   3. First value
   4. Last value
8. Monoclonal antibodies are produced from:
   1. Many types of immune cells
   2. A single clone of antibody
   3. Viruses
   4. Multiple bacterial strains
9. Computational biology contributes to personalized treatments based on:
   1. Blood group only
   2. Random selection
   3. Individual genetic profiles
   4. Environmental conditions only
10. The secretion of sweat and sebaceous glands provides:
    1. Antibiotics
    2. Antimicrobial properties
    3. Carbohydrates
    4. Hormones
11. Which principle of biodefense involves setting up plans and protocols to respond to biological incidents?
    1. Surveillance and Detection
    2. Prevention
    3. Preparedness
    4. Research and Development
12. Fusion proteins for insulin production are combined with:
    1. Histones
    2. β-galactosidase
    3. DNA ligase
    4. RNA polymerase
13. Deoxygenation of oceans refers to:
    1. Reduction of dissolved oxygen in warmer waters
    2. Addition of nitrogen in water
    3. Excess oxygen production by phytoplankton
    4. Melting of polar ice
14. Biostatistics is not involved in:
    1. Epidemiological studies
    2. Agriculture
    3. Petroleum industry
    4. Public Health
15. An example of a penicillin antibiotic is:
    1. Doxycycline
    2. Ciprofloxacin
    3. Amoxicillin
    4. Sulfamethoxazole
16. Which molecule’s structural homology is shown in Fig. 12.5 for different mammals?
    1. Hemoglobin
    2. Myoglobin
    3. Insulin
    4. Keratin
17. A patient has a severe burn injury, compromising their skin barrier. Which of the following is most likely to occur?
    1. Increased risk of infection due to loss of chemical and physical barriers
    2. Decreased risk of infection due to increased immune response
    3. No change in infection risk
    4. Increased risk of autoimmune disease