Question

Find odd one w.r.t meiotic cell cycle

• A. DNA replication occurs once only i.e., before Gap-2
• B. Karyokinesis occurs twice
• C. Reduction of ploidy at metaphase-I
• D. Crossing over in tetrad stage

Answer 1

The correct option is C Reduction of ploidy at metaphase-I

• DNA replication occurs once only before gap-2 i.e. S-phase or synthesis phase.
• Karyokinesis occurs once in mitosis and twice in meiosis.
  
• Reduction of ploidy occurs at Anaphase-1.
• Crossing over in tetrad stage.
• So,the correct option is " Reduction of ploidy at metaphase -1 ".