Which refers to the pairing of homologous chromosomes during prophase I?a.Independent assortment      b.Synapsis c.Segregation

To answer the question regarding the pairing of homologous chromosomes during prophase I, we need to analyze the options provided:

1. Independent assortment: This refers to the process during meiosis where different genes independently separate from one another when reproductive cells develop. It does not specifically describe the pairing of chromosomes.

2. Synapsis: This is the correct term for the pairing of homologous chromosomes during prophase I of meiosis. During synapsis, homologous chromosomes come together to form pairs, allowing for crossing over and genetic recombination.

3. Segregation: This term typically refers to the separation of alleles during gamete formation and is not specifically related to the pairing of chromosomes.

Final Answer

The correct answer is b. Synapsis.