Mitosis · 有丝分裂
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| mitosis/maɪˈtəʊsɪs/ | 有丝分裂 | yǒu sī fēn liè |
| daughter cells/ˈdɔːtə selz/ | 子细胞 | zi xì bāo |
| meiosis/meɪˈəʊsɪs/ | 减数分裂 | jiǎn shù fēn liè |
Making identical copies
- To grow and repair itself, your body must make new cells that are exact copies.
- This copying division is mitosis 有丝分裂.
制造相同的副本
- 为了生长和修复自己,你的身体必须制造作为精确副本的新细胞。
- 这种复制分裂是有丝分裂(mitosis)。
Mitosis produces daughter cells that are: · 有丝分裂产生的子细胞是:
Mitosis makes identical copies. · 有丝分裂制造相同的副本。
After mitosis, each daughter cell has: · 有丝分裂后,每个子细胞有:
The number stays the same (46 in humans). · 数目保持相同(人类中 46)。
Cell division that produces two identical cells for growth and repair is . · 为生长和修复产生两个相同细胞的细胞分裂是。
Mitosis keeps the chromosome number the same. · 有丝分裂保持染色体数目相同。
What mitosis is
- Mitosis produces two genetically identical daughter cells 子细胞 from one parent cell.
- Each has the same number of chromosomes as the parent (46 in humans).
Mitosis makes two identical diploid cells; meiosis 减数分裂 makes four different haploid gametes
有丝分裂是什么
- 有丝分裂从一个亲本细胞产生两个遗传上相同的子细胞。
- 每个有与亲本相同数目的染色体(人类中 46)。
有丝分裂制造两个相同的二倍体细胞;减数分裂制造四个不同的单倍体配子
Mitosis · 有丝分裂
Mitosis makes two genetically identical cells — for growth, repair and asexual reproduction. · 有丝分裂制造两个遗传上相同的细胞——用于生长、修复和无性生殖。
Mitosis is used for: (Select all that apply.) · 有丝分裂用于:(选择所有适用项。)
Gametes are made by meiosis, not mitosis. · 配子由减数分裂制造,而不是有丝分裂。
Why it matters
- Mitosis is used for growth, repair of damaged tissue, and asexual reproduction.
- Because the cells are identical, the new tissue matches the old.
为什么它重要
- 有丝分裂用于生长、受损组织的修复和无性生殖。
- 因为细胞是相同的,新组织与旧的匹配。
Before mitosis, the cell copies all its chromosomes. · 有丝分裂之前,细胞复制它所有的染色体。
The copies are then shared equally. · 副本然后被平等地分享。
The key idea
- Before dividing, the cell copies all its chromosomes.
- The copies are shared equally, so each daughter cell gets a full, identical set.
Mitosis keeps the chromosome number the same. Both daughter cells get the full 46. This is different from meiosis, which halves the number to make gametes.
关键想法
- 在分裂之前,细胞复制它所有的染色体。
- 副本被平等地分享,所以每个子细胞得到一套完整、相同的。
有丝分裂保持染色体数目相同。 两个子细胞都得到完整的 46。这与减数分裂不同,减数分裂把数目减半来制造配子。
You've got it
- mitosis makes two genetically identical daughter cells
- each has the same chromosome number as the parent (46 in humans)
- it is used for growth, repair and asexual reproduction
你掌握了
- 有丝分裂制造两个遗传上相同的子细胞
- 每个有与亲本相同的染色体数目(人类中 46)
- 它用于生长、修复和无性生殖