2nd Year Biology Chapter 12 TestEVOLUTION

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. In which year did Charles Darwin set sail on his scientific expedition?

   1. 1831

   2. 1809

   3. 1859

   4. 1882

2. According to the endosymbiotic theory, smaller engulfed prokaryotes capable of aerobic respiration evolved into:

   1. Mitochondria

   2. Nuclei

   3. Chloroplasts

   4. Endoplasmic reticulum

3. Neo-Darwinism was formed in the early 20th century by integrating Darwinism with:

   1. Modern genetics

   2. Traditional creationism

   3. Geology

   4. Environmental physics

4. Because DNA carries the code for building blocks, related animals with similar DNA will also possess similar:

   1. Skeletal sizes only

   2. Proteins

   3. Habitats

   4. Lifespans

5. The DNA found inside mitochondria and chloroplasts is structurally organized as a:

   1. Linear chromosome

   2. Circular chromosome

   3. Single strand of RNA

   4. Protein-bound grid

6. Which statement is incorrect?

   1. Homologous organs are functionally different but structurally alike

   2. Analogous organs are functionally different but structurally alike

   3. Examples of analogous structures are arms of a man, forelimb of a cat, flipper of a whale

   4. Examples of homologous structures are wings of bats, birds and insects

7. Islands often have relatively few but highly unique species primarily due to subsequent evolutionary events and:

   1. Instant mutations

   2. Large gene flow from mainlands

   3. Constant environmental shocks

   4. Island colonization

8. The Hardy-Weinberg theorem assumes that no individuals enter a population from the outside, a process known as:

   1. Emigration

   2. Domestication

   3. Immigration

   4. Mutation

9. Which of the following ideas is common to both Lamarckism and Darwinism?

   1. Mutations are the source of genetic variations

   2. Adaptations enable individuals to cope with environmental challenges

   3. Use and disuse of organs results in the development of acquired characters

   4. Acquired characters are inherited to next generations

10. In humans, the vermiform appendix is considered a vestige of the:

    1. Stomach

    2. Cecum

    3. Liver

    4. Heart