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

Question 1

Which of the following best describes Darwin's theory of evolution?

Accepted Answer

Species living today descended from ancestors and evolution occurs through natural selection.

Question 2

Which process correctly describes the flow of genetic information in cells?

Accepted Answer

$$	ext{DNA} ightarrow 	ext{RNA} ightarrow 	ext{Protein}$$

Question 3

A scientist observes that red blood cells (RBCs) are round and flexible. How does this structure relate to their function?

Accepted Answer

Their flexibility makes it easier to move and transport oxygen through blood vessels.

Question 4

Which of the following is an example of artificial selection?

Accepted Answer

Humans breeding crops for higher yield.

Question 5

Which statement about the scientific method is most accurate?

Accepted Answer

It is repetitive, non-linear, and often involves collaboration.

Question 6

Energy flows through an ecosystem in one direction. Which of the following best describes this process?

Accepted Answer

Energy enters as sunlight, is converted by producers, and moves through consumers before being lost as heat.

Question 7

Which of the following is a correct application of the concept 'structure and function are related'?

Accepted Answer

The shape of a bird's beak determines what type of food it can eat.

Question 8

Which scenario best illustrates interactions between systems in biology?

Accepted Answer

Proteins behaving differently in cells versus whole organisms.

Question 9

If a scientist wants to test whether different types of birds eat different foods, which step should come first according to the scientific method?

Accepted Answer

Observe and ask a question.

Question 10

Which of the following is NOT a characteristic that distinguishes life?

Accepted Answer

Being static and unchanging.

Question 11

A mutation in the gene encoding insulin leads to a nonfunctional protein. Which process is directly affected?

Accepted Answer

Flow of information from DNA to RNA to protein.

Question 12

Which of the following best describes matter cycling in an ecosystem?

Accepted Answer

Matter cycles through an ecosystem and is always present.

Question 13

A scientist splits birds into two groups with different forms and observes their eating patterns. What is the scientist most likely testing?

Accepted Answer

The impact of bird form on food choice.

Question 14

Which of the following is a correct example of how external factors can influence gene expression?

Accepted Answer

Temperature changes causing certain genes to be turned on or off.

Question 15

Which of the following is a multi-step process that involves both the transfer of energy and the cycling of matter?

Accepted Answer

Photosynthesis followed by cellular respiration in plants.

Question 16

Which of the following best explains why science is considered collaborative?

Accepted Answer

Scientists often work together, share data, and build on each other's findings.

Question 17

Which of the following is an example of how science is connected to society?

Accepted Answer

Development of medical treatments based on genetic research.

Question 18

If a scientist observes a pattern in bird feeding behavior and wants to test if gender affects this pattern, which is the best hypothesis?

Accepted Answer

Male and female birds have different feeding patterns.

Question 19

Which of the following is a correct statement about the relationship between genes and proteins?

Accepted Answer

Genes are segments of DNA that provide the information to make proteins.

Question 20

Which of the following best describes natural selection?

Accepted Answer

The process by which evolution occurs due to differential survival and reproduction.

Foundations of General Biology: Key Concepts and Scientific Method

Study Guide - Practice Questions