MCQ Collection

MDCAT Biology MCQs

Practice MDCAT Biology questions with answers and explanations.

MDCAT concept application: Which explanation best answers why is noncompetitive inhibition not fully overcome by extra substrate?

Choose an option to check your answer.

Identify the best answer from this biological clue: It lowers the amount or efficiency of functional enzyme.

Choose an option to check your answer.

According to Lamarck, how could acquired traits become common?

Choose an option to check your answer.

MDCAT concept application: In an MDCAT concept check, according to Lamarck, how could acquired traits become common?

Choose an option to check your answer.

Identify the best answer from this biological clue: Lamarck proposed inheritance of acquired characteristics.

Choose an option to check your answer.

Which observation is essential to Darwinian natural selection?

Choose an option to check your answer.