SAT Subject Biology Practice Question 42: Answer and Explanation

Next steps

Question: 42

1. In the Oparin-Haldane experiment, the artificial atmosphere they created contained which of the following?

I. Hydrogen gas

II. Oxygen gas

III. Reducing gases

A. I only
B. II only
C. I and II
D. I and III
E. II and III

Correct Answer: D

Explanation:

Oparin and Haldane's artificial atmosphere contained hydrogen gas and other reducing gases. It did not contain oxygen gas, which characterizes the current oxidizing atmosphere.

Previous       Next