Q: Which of the following best describes the flow of genetic information in molecular biology?

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

Question 1

Which of the following best describes an observation in the context of scientific inquiry?

Accepted Answer

A record or description of a fact or occurrence, often involving measurement with instruments.

Question 2

A scientist hypothesizes that squirrels’ diets consist exclusively of acorns. Which of the following is a valid prediction based on this hypothesis?

Accepted Answer

Squirrels will not be observed eating peanuts.

Question 3

Which of the following statements correctly summarizes the Cell Theory?

Accepted Answer

All organisms are made of cells, and all cells come from preexisting cells.

Question 4

In an experiment testing whether lavender oil prevents zombies from detecting human scent, which of the following is the most appropriate control?

Accepted Answer

Using a group of humans with no scent masking at all.

Question 5

Which of the following is a testable hypothesis?

Accepted Answer

Female pterodactyls chose mates based on wingspan.

Question 6

Which of the following best describes the difference between a scientific theory and a scientific hypothesis?

Accepted Answer

A theory is an explanation for a very general phenomenon or observation; hypotheses treat more specific observations.

Question 7

Which of the following are required for natural selection to occur?

Accepted Answer

Differential reproduction and heritable variation.

Question 8

Natural selection acts only on traits that are:

Accepted Answer

Heritable

Question 9

Evolutionary change occurs in:

Accepted Answer

Populations

Question 10

Which of the following statements about evolution is CORRECT?

Accepted Answer

None of the above.

Question 11

Which of the following are required for artificial selection?

Accepted Answer

Differential reproduction and heritable variation.

Question 12

If the lowest protein content corn kernels are selected as parents for the next generation, what would you expect to happen to the average protein content over generations?

Accepted Answer

It would decrease over time.

Question 13

Which of the following best describes the flow of genetic information in molecular biology?

Accepted Answer

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

Question 14

When would a change in the DNA sequence result in a change in the phenotype of an organism?

Accepted Answer

Sometimes

Question 15

Based on rRNA sequence data, Land Plants: AUAUCGAG, Green Algae: UAUGGAG, Fungi: AUAUGGAC. Which statement most accurately summarizes the evolutionary relationships?

Accepted Answer

Fungi are more closely related to green algae than to land plants.

Question 16

Which domain(s) of life include prokaryotes?

Accepted Answer

Bacteria and Archaea

Question 17

Approximately how much larger is the diameter of a eukaryotic cell compared to a prokaryotic cell?

Accepted Answer

10 times larger

Question 18

Approximately how much larger is the cross-sectional area of a eukaryotic cell compared to a prokaryotic cell?

Accepted Answer

100 times larger

Question 19

Approximately how much larger (by volume) is a eukaryotic cell compared to a prokaryotic cell?

Accepted Answer

1000 times larger

Question 20

Which of the following best describes a population in biological terms?

Accepted Answer

A group of individuals of the same species living in the same area at the same time.

Hypothesis Testing, Experimental Design, and Fundamental Theories in Biology

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