Dental Admissions Test (DAT) 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the first macromolecule that formed on earth?

Morula

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.

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Nondisjunction

Nucleolus

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