Zoology Practice Test || Zoology Exam Questions 31-40 || Zoology MCQ

Biology & Ecology Quiz

31. Which of the following disorders is caused by a single gene mutation?

A) Down syndrome B) Turner syndrome C) Cystic fibrosis D) Klinefelter syndrome

32. Chromosomal anomalies can result in which of the following conditions?

A) Genetic mutations B) Inborn errors of metabolism C) Syndromes such as Down syndrome D) All of the above

33. Shuttle vectors are designed to function in:

A) Only prokaryotic cells B) Only eukaryotic cells C) Only yeast cells D) Both prokaryotic and eukaryotic cells

34. Which of the following is an example of a sex-linked disorder?

A) Sickle cell anemia B) Hemophilia C) Cystic fibrosis D) Tay-Sachs disease

35. Which of the following techniques involves introducing recombinant DNA into a host organism?

A) DNA sequencing B) Gene cloning C) Gene transfer technology D) Chromosome jumping

36. Which of the following best describes Intellectual Property Rights (IPR) in biotechnology?

A) Legal rights to sell agricultural products B) Protection of inventions and innovations C) Rights to use genetic material without restrictions D) Laws governing environmental protection

37. Match the Following List I with List II:
List I                   List II
a. Ligands                  1. Initiates cellular responses
b. Receptors              2. Transmit signals inside the cell
c. Second messengers    3. Bind to receptors on target cells
d. G-proteins                 4. Amplify the signal inside the cell

A) a-3, b-1, c-2, d-4 B) a-1, b-3, c-4, d-2 C) a-1, b-2, c-3, d-4 D) a-3, b-2, c-1, d-4

38. In a fragmented forest ecosystem, how would the edge effect most likely alter species composition at the boundary between the forest and an open area?

A) Increase in edge species that thrive in transitional zones B) Decrease in biodiversity due to reduced habitat size C) Increase in core species that require deep forest habitats D) Uniform distribution of species across the edge and core areas

39. Given a population experiencing logistic growth, how would you expect the population growth rate to change as the population approaches its carrying capacity?

A) The growth rate increases exponentially due to abundant resources. B) The growth rate slows down and stabilizes as resources become limited. C) The growth rate remains constant regardless of population size. D) The growth rate decreases sharply to zero as the population overshoots the carrying capacity.

40. Identify the true statement about community ecology :

A) Edge effects always negatively impact the organisms in the habitat. B) Ecotones are areas that are completely separate from adjacent communities. C) Community structure does not change over time. D) Edge effects can lead to increased biodiversity in habitats.

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