Meiosis differs from mitosis in that it involves how many rounds of nuclear division?

1. Mitosis has just one nuclear division and produces two identical nuclei. 2. Meiosis has to halve the chromosome number, which takes more than one split. 3. Unlike mitosis, in which there is just one nuclear division, meiosis has two complete rounds of nuclear division, meiosis I and meiosis II. 4. Three and four rounds would reduce the chromosome number too far. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 11 'Meiosis and Sexual Reproduction', sections 11.1-11.2_