Q: Gene expression involves which sequence of events?

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

Question 1

Which of the following best describes an emergent property in biological systems?

Accepted Answer

A property that results from the arrangement and interaction of parts within a system, making the whole greater than the sum of its parts.

Question 2

Which of the following is the correct order of biological organization from smallest to largest?

Accepted Answer

Organelles, cells, tissues, organs, organisms, populations, communities, ecosystems, biosphere

Question 3

A scientist is studying the effect of a new drug on the growth of cancer cells. Which level of biological organization is primarily being investigated?

Accepted Answer

Cell

Question 4

Which statement correctly compares prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have a nucleus, whereas prokaryotic cells do not.

Question 5

How many chromosomes are found in a typical human somatic (body) cell?

Accepted Answer

$46$

Question 6

Which of the following best explains the role of DNA in cells?

Accepted Answer

DNA provides the instructions for making proteins, which carry out most cellular functions.

Question 7

Which of the following is NOT one of the four nucleotides found in DNA?

Accepted Answer

Uracil

Question 8

Gene expression involves which sequence of events?

Accepted Answer

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

Question 9

Which domain of life includes organisms with membrane-bound nuclei?

Accepted Answer

Eukarya

Question 10

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

Accepted Answer

Natural selection

Question 11

Which of the following is a testable scientific hypothesis?

Accepted Answer

If fertilizer is added to soil, then plant growth will increase.

Question 12

Which of the following statements about scientific theories is correct?

Accepted Answer

A scientific theory is broader in scope than a hypothesis and is supported by a large body of evidence.

Question 13

Which of the following is an example of the cycling of nutrients in an ecosystem?

Accepted Answer

Decomposers breaking down dead organisms and returning minerals to the soil.

Question 14

Which process is responsible for the flow of energy through an ecosystem?

Accepted Answer

Energy flows from sunlight to producers to consumers and is eventually lost as heat.

Question 15

Which of the following best illustrates the concept of 'structure and function' in biology?

Accepted Answer

The sharp, pointed shape of canine teeth is suited for tearing meat.

Question 16

A scientist observes that all living organisms use DNA as their genetic material. This observation best supports which theme in biology?

Accepted Answer

Unity in the diversity of life

Question 17

Which of the following is a correct application of the concept of 'survival of the fittest'?

Accepted Answer

Individuals with traits best suited to their environment are more likely to survive and reproduce.

Question 18

Which of the following is true about gene expression?

Accepted Answer

Gene expression is the process by which information from a gene is used to synthesize a functional protein.

Question 19

Which of the following is a real-world example of an emergent property?

Accepted Answer

A functioning bicycle only works when all its parts are assembled correctly.

Question 20

Which of the following best describes the relationship between reductionism and the study of biology?

Accepted Answer

Reductionism involves breaking down complex systems into simpler components to study them, but understanding biology also requires studying interactions among components.

Introduction to Evolution and the Foundations of Biology

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