Q: What is the correct sequence of the central dogma of molecular biology?

$$DNA \rightarrow RNA \rightarrow \text{protein}$$

Question 1

Which of the following correctly lists the levels of biological organization from largest to smallest, as depicted in the provided diagram?

Accepted Answer

Biosphere, Ecosystems, Communities, Populations, Organisms, Organs, Tissues, Cells, Organelles, Molecules

Question 2

Which statement best describes the process of evolution as outlined in the study materials?

Accepted Answer

Evolution is the process by which species accumulate differences from their ancestors as they adapt to different environments over time.

Question 3

In the context of the scientific method, what is the primary difference between a hypothesis and a scientific theory?

Accepted Answer

A hypothesis is a specific, testable explanation for a phenomenon, while a theory is a broad explanation supported by a large body of evidence.

Question 4

Which of the following best explains why camouflaged mice suffer lower predation rates in their native habitats, as shown in the mouse predation experiment?

Accepted Answer

Camouflaged mice are less visible to predators, reducing their chances of being eaten.

Question 5

Which of the following is NOT a unifying theme in biology as described in the study materials?

Accepted Answer

Gravity

Question 6

Which domain of life includes organisms with membrane-bound organelles and a nucleus?

Accepted Answer

Eukarya

Question 7

What is the correct sequence of the central dogma of molecular biology?

Accepted Answer

$$DNA ightarrow RNA ightarrow 	ext{protein}$$

Question 8

Which of the following best describes the role of producers in an ecosystem?

Accepted Answer

They convert energy from sunlight into chemical energy through photosynthesis.

Question 9

A scientist wants to test if a new fertilizer increases plant growth. She sets up two groups: one receives the fertilizer, the other does not. What is the independent variable in this experiment?

Accepted Answer

The application of fertilizer

Question 10

Which of the following statements about DNA is correct?

Accepted Answer

DNA contains the instructions for building proteins and is composed of four types of nucleotides: A, T, C, and G.

Question 11

Which of the following is an example of a mutually beneficial interaction between organisms?

Accepted Answer

Fish eating small parasites off turtles

Question 12

Which of the following best describes reductionism in biology?

Accepted Answer

Studying simpler components of complex systems to better understand the whole system.

Question 13

Which of the following is a correct statement about prokaryotic cells?

Accepted Answer

They lack a nucleus and membrane-bound organelles.

Question 14

Which of the following best explains why energy flow in an ecosystem is described as 'flowing' rather than 'cycling'?

Accepted Answer

Energy enters as light and exits as heat, while matter is recycled.

Question 15

A population of beetles is exposed to a new pesticide. Over several generations, most beetles become resistant to the pesticide. Which process best explains this change?

Accepted Answer

Natural selection

Question 16

Which of the following is an example of quantitative data?

Accepted Answer

The plant grew 5 cm in one week.

Question 17

Which of the following best describes the relationship between genes and proteins?

Accepted Answer

Genes contain the instructions for making proteins.

Question 18

Which of the following is a correct example of inductive reasoning in biology?

Accepted Answer

Observing that all swans you have seen are white and concluding that all swans are white.

Question 19

Which of the following best describes the concept of a genome?

Accepted Answer

An organism’s entire set of genetic instructions.

Introduction to Biology: Evolution and Foundations

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