第 1 题
1 分What is the primary purpose of mitosis in a mature human body?
Oxford AQA IGCSE · CORE Biology (9221)
細胞分裂：练习题
5 道选择题即时批改，另有 4 道文字题附完整解题步骤，全部围绕「細胞分裂」。
9 道题目20 分免费，无需注册
第 2 题
1 分When a human body cell undergoes mitosis and a reproductive cell undergoes meiosis, the resulting daughter cells differ significantly. Which statement correctly compares the genetic outcome of these two processes?
第 3 题
1 分During the process of meiosis in human reproductive organs, how many gametes are produced from one original cell and what is their chromosome count?
第 4 题
1 分A single human body cell undergoes mitosis during growth. Later, a cell in the reproductive organs undergoes meiosis to produce gametes.
Compare the final number of chromosomes and the genetic relationship of the daughter cells to the original parent cell for both processes.
第 5 题
1 分A human body cell undergoes mitosis to produce replacement cells, while cells in reproductive organs undergo meiosis to form gametes. Which statement correctly compares the chromosomal outcome of these two processes?
第 6 题
2 分State two reasons why body cells undergo mitosis in a mature human.
先自己写一遍答案，再对照解题步骤。
第 7 题
3 分Contrast the ability of animal cells to differentiate with that of most plant cells throughout their respective lifespans.
先自己写一遍答案，再对照解题步骤。
第 8 题
5 分During meiosis in human reproductive organs, describe the sequence of events regarding the number of genetic material copies made and the subsequent number of cell divisions required to produce four gametes.
先自己写一遍答案，再对照解题步骤。
第 9 题
5 分Cell division occurs through two distinct processes: mitosis and meiosis.
a) State exactly where in the human body meiosis occurs.
b) Compare a cell produced by mitosis with a cell produced by meiosis in terms of the number of chromosomes and genetic similarity to the parent cell.
c) Explain why it is biologically important that gametes are produced by meiosis rather than mitosis for the survival of the species through generations.
先自己写一遍答案，再对照解题步骤。
* thinka提供的内容由AI生成，可能并非总是准确或最新。请将其用作辅助资源，并与官方材料进行核实。
想多做几道同类题目？立即开始练习这个课题，边做边批改。
立即练习