O Level · Biology · Hard level · 7 questions
Inheritance & Variation: Exam Style
Genes and alleles, mitosis and meiosis, genetic diagrams, and natural selection, the topic with the most marks available for laying work out correctly. This quiz is the hardest level, with O Level exam-style questions that mix the ideas together. 7 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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