Why is Meiosis II referred to as an equational division?
Answer and explanation
Correct answer: A. Because chromosome number remains unchanged from start of Meiosis II to completion
- Step 1: Meiosis I is termed a reductional division because the diploid chromosome number is reduced to haploid () through the segregation of homologous chromosomes.
- Step 2: Meiosis II begins with haploid secondary cells () and separates sister chromatids at anaphase II.
- Step 3: The resulting four gametes each contain the exact same haploid chromosome count (); hence it is called an equational division.
Answer
Because the chromosome number remains unchanged from the beginning of Meiosis II () to its completion ().
Why not the others: Crossing over occurs in Meiosis I (Pachytene), not Meiosis II; Producing diploid cells contradicts the generation of haploid gametes; Time durations of karyokinesis and cytokinesis are unequal.
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