10 bivalents formed in a cell with 20 chromosomes at the beginning of meiosis I.
Meiosis I is division of a cell in two stages that results in four cells, each with half the chromosomes of the original cell. Meiosis is cell division that reduces the number of chromosomes in the parent cell by half and results in production of four gamete cells.
The paired chromosomes are called bivalents. During the prophase homologous chromosomes pair and form synapses. bivalent contain two chromosomes and four chromatids, with one chromosome coming from each parent.
To learn more about Meiosis , here
brainly.com/question/11622266
#SPJ4
