2nd Year Biology 3rd Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. Biotechnology can be defined as the use of:
   1. Metals
   2. Microorganisms
   3. Animals
   4. Air
2. 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
3. Which enzyme in sweat helps to break down bacterial cell walls?
   1. Amylase
   2. Lysozyme
   3. Pepsin
   4. Lipase
4. 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
5. Fusion proteins for insulin production are combined with:
   1. Histones
   2. β-galactosidase
   3. DNA ligase
   4. RNA polymerase
6. Biostatistics is not involved in:
   1. Epidemiological studies
   2. Agriculture
   3. Petroleum industry
   4. Public Health
7. The secretion of sweat and sebaceous glands provides:
   1. Antibiotics
   2. Antimicrobial properties
   3. Carbohydrates
   4. Hormones
8. Computational biology contributes to personalized treatments based on:
   1. Blood group only
   2. Random selection
   3. Individual genetic profiles
   4. Environmental conditions only
9. The insulin gene is located on which human chromosome?
   1. Chromosome 7
   2. Chromosome 11
   3. Chromosome 5
   4. Chromosome 9
10. Range is calculated as:
    1. Σfx/Σf
    2. Maximum – Minimum
    3. Median – Mode
    4. Σ(X–μ)²/n
11. 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
12. Which molecule’s structural homology is shown in Fig. 12.5 for different mammals?
    1. Hemoglobin
    2. Myoglobin
    3. Insulin
    4. Keratin