Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) efficiently. Utilize flashcards and multiple-choice questions with helpful explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the first macromolecule that formed on earth?

Morula
Oxygen
Nondisjunction
Nucleolus

The correct answer is: Oxygen

The first macromolecule that formed on Earth is oxygen. This is because oxygen is essential for the process of photosynthesis, which is the primary method of energy production for many living organisms. The other options, such as Morula, Nondisjunction, and Nucleolus, are incorrect as they are not macromolecules. Morula is a stage in embryonic development, Nondisjunction is a chromosomal abnormality, and Nucleolus is a structure found in the nucleus of a cell.