Which of the following does not occur during prophase of Meiosis 1: A) recombination B) chromosome condensation C) synaptonemal complex formation D) separation of homologous chromosomes E) chiasma formation

Separation of Homologous Chromosomes

Step-by-step explanation

Meiosis 1 is a characteristic feature of diploid cells. 

It is characterized by the separation of homologous chromosomes and conversion of diploid cell to haploid cell. 

The steps of Meiosis 1 are: 

• Prophase 1 

• Metaphase 1

• Anaphase 1 

• Telophase 1

Among these steps, the longest phase is Prophase 1 and it is again divided into several steps: 

• Laptotene 

• Zygotene 

• Pachytene 

• Diplotene 

• Diakinesis  

→ The Recombinantion of chromosomes occurs during the Pachytene Stage of Meiosis 1.

→ The chromosomal condensation starts in the Laptotene stage of Prophase 1.

→ The Synaptonemal complex is completely formed in the Zygotene stage of Prophase 1.

→ The chiasma formation occurs in the Diplotene stage of 

Prophase 1.

→ But, the separation of homologous chromosomes occurs during the Anaphase 1 of Meiosis 1. 

So, the separation of homologous chromosomes doesn't occur in Prophase 1 of Meiosis 1. 

Hence, the correct answer is Separation of Homologous chromosomes