10th Class Biology 3rd Quarter Book Paper

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

1. Which of the following is NOT a symptom of AIDS?
   1. Swollen lymph nodes
   2. Weight loss
   3. Joint pain
   4. Increased muscle strength
2. 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
3. Macrophages and dendritic cells are:
   1. lymphocytes
   2. granulocytes
   3. monocytes
   4. red blood cells
4. Which technology was rapidly developed due to COVID-19?
   1. mRNA vaccines
   2. Antibiotics
   3. Antifungal drugs
   4. DNA editing tools
5. 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
6. Helper T cells assist:
   1. B cells
   2. NK cells
   3. Neutrophils
   4. Basophils
7. COVID-19 is caused by:
   1. Influenza virus
   2. Coronavirus SARS-CoV-2
   3. Influenza virus
   4. Fungi
8. A dihybrid cross involves:
   1. One trait
   2. Two traits
   3. Three traits
   4. Four traits
9. The protective function of adaptive immunity is to:
   1. Provide long-term protection against specific pathogens
   2. Produce non-specific defense only
   3. Kill only bacteria
   4. Repair tissues only
10. Sickle cell anaemia is an example of:
    1. Autoimmune disease
    2. Genetic disorder
    3. Nutritional deficiency
    4. Environmental disease
11. Which part of the chromosome is responsible for protecting it from degradation?
    1. Centromere
    2. Telomere
    3. Chromatid
    4. Histone
12. Lymph nodes contain collections of:
    1. B cells and T cells
    2. Neutrophils and macrophages
    3. Basophils and eosinophils
    4. NK cells and dendritic cells