EVERYDAY SCIENCE

Detailed explanation-1: -In meiosis I, synapsis formation occurs in the zygotene stage of prophase-I. It is the second stage of prophase-I. During this stage, the chromosomes start pairing together and this process of association called synapsis. Such paired chromosomes are called homologous chromosomes.

Detailed explanation-2: -In the zygotene stage, homologous chromosomes (one from mother and one from father) come together and pair. The process of the pairing of homologous chromosomes is known as synapsis.

Detailed explanation-3: -Synapsis takes place during prophase I of meiosis. When homologous chromosomes synapse, their ends are first attached to the nuclear envelope. These end-membrane complexes then migrate, assisted by the extranuclear cytoskeleton, until matching ends have been paired.

Detailed explanation-4: -Zygotene comes under the second stage Prophase-1 of meiosis. It is followed by the stage of leptotene, where chromosome uncoiling and condensing occurs. Homologous chromosomes (one from the mother and one from the father) come together and pair in the zygotene phase.

Detailed explanation-5: -Complete answer: Zygotene is the second stage of prophase-I in which the process of pairing between homologous chromosomes at end to end takes place, which is known as synapsis.