Multiple choice

During zygotene stage of meiosis in a spore mother cell, a proteinaceous structure which appears between homologous chromosomes is known as

  1. histone complex

  2. lysosomal complex

  3. liposomal complex

  4. synaptonemal complex
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The synaptonemal complex is a protein structure that forms between homologous chromosomes during the zygotene stage of prophase I in meiosis. It facilitates synapsis (pairing) of homologous chromosomes and crossing over. This matches option D. The other options refer to different cellular structures: histone complexes (DNA packaging), lysosomal complexes (digestion), and liposomal complexes (lipid transport).

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