Given below are two statements :
Statement (I) : Gregor Johann Mendel worked on Pisum sativum and established the laws of inheritance of traits.
Statement (II) : Gregor Johann Mendel also worked on mice, however, he had to abandon them due to pressure from the religious authority.
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Mendel originally bred mice to study how traits are inherited, but religious objections to studying animal mating led him to choose the garden pea (*Pisum sativum*) as a non-controversial alternative model organism.