名詞 prophase:

1. the first stage of meiosis
2. the first stage of mitosis

pro.phase

n.（名詞）
The first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell.
前期階：細(xì)胞減數(shù)分裂的第一個(gè)階段，其間染色體濃縮且能被看見(jiàn)，核細(xì)胞膜衰弱，紡錘體在細(xì)胞的相對(duì)紡錘極形成
The first stage of meiosis, constituted by a series of events that include DNA replication, the synapsis of homologous chromosomes, crossing over, the formation of chiasmata, and contraction of the chromosomes.
前期階：減數(shù)分裂的第一個(gè)階段，由一系列的事件組成，包括脫氧核糖核酸的復(fù)制，同種染色體結(jié)合、交叉，染色體形成以及染色體的收縮

【引伸】
propha.sic