Answer:
Two sets of sister chromatids (that have synapsed)
Explanation:
Tetrad is defined as the foursome during the process of meiosis. It is also known as the association of four sister chromatids means two pairs of homologous chromosomes which are physically bound together with the help of at least one DNA crossover.
Because of this physical attachment segregation, and alignment of the two sets of sister chromatids in the first meiotic division occurs.
