reduction division
reduction division — noun
1. the stage of meiosis that is usually first and leaves each new cell with half th
the stage of meiosis that is usually first and leaves each new cell with half the original number of chromosomes
In class, Talia learned that reduction division cuts the chromosome number in half.
reduction division cuts chromosome number in half
The diagram shows reduction division before the two cells move apart.
Scientists call meiosis I reduction division because each new cell has fewer chromosomes.
Our teacher compared reduction division with the next cell division on the board.
The textbook says reduction division happens only during the first meiotic stage.
- first meiotic division
a more neutral textbook term for the same stage
- meiosis I
the numbered label used in many biology courses
- equational division
the second meiotic division, where the chromosome number does not halve again
用法筆記
Used mainly in biology when explaining meiosis. Many modern textbooks prefer first meiotic division or meiosis I.