Question

The basic difference between mitosis and meiosis is that

• A. Homologous chromosomes form tetrads in mitosis but not in meiosis
• B. Homologous chromosomes form tetrads in meiosis but not in mitosis
• C. The nuclear membrane disappears in mitosis but not in meiosis
• D. A spindle forms in mitosis but not in meiosis
• E. A spindle forms in meiosis but not in mitosis

Answer 1

The correct option is B Homologous chromosomes form tetrads in meiosis but not in mitosis

• The pairing of homologous chromosomes during the zygotene of prophase I and formation of tetrads are characteristic of meiosis; not mitosis.
• Both mitosis and meiotic divisions exhibit the disappearance of the nuclear membrane and spindle formation.

• So, the correct answer is B.