10th Class Biology Second half Book Paper

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

1. Bioremediation is the process of using:
   1. Machines to remove waste
   2. Chemicals to neutralize toxins
   3. Artificial devices for cleaning
   4. Living organisms to clean pollutants
2. Which of the following is NOT a symptom of AIDS?
   1. Swollen lymph nodes
   2. Weight loss
   3. Joint pain
   4. Increased muscle strength
3. Alleles are:
   1. Different forms of a gene located at the same locus
   2. Different species of organisms
   3. Mutated chromosomes
   4. Copies of RNA molecules
4. Macrophages and dendritic cells are:
   1. lymphocytes
   2. granulocytes
   3. monocytes
   4. red blood cells
5. Survival analysis in biostatistics is used to predict:
   1. Average rainfall
   2. Life expectancy
   3. School admission rates
   4. None of these
6. Modern biotechnology is also called:
   1. Century of Chemistry
   2. Century of Biology
   3. Century of Physics
   4. Century of Medicine
7. Which technology was rapidly developed due to COVID-19?
   1. mRNA vaccines
   2. Antibiotics
   3. Antifungal drugs
   4. DNA editing tools
8. Which of the following best defines a gene?
   1. A segment of RNA that produces proteins
   2. A sequence of amino acids
   3. A unit of inheritance found in DNA
   4. A type of chromosome
9. Helper T cells assist:
   1. B cells
   2. NK cells
   3. Neutrophils
   4. Basophils
10. If the number of values is odd, median is:
    1. Middle value
    2. Average of two middle values
    3. First value
    4. Last value
11. A major challenge for biological pest control in Pakistan is:
    1. Lack of pests
    2. Lack of education and awareness
    3. Lack of sunlight
    4. Excessive rain
12. COVID-19 is caused by:
    1. Influenza virus
    2. Coronavirus SARS-CoV-2
    3. Influenza virus
    4. Fungi