Mitosis and Meiosis Definitions

0.0(0)
studied byStudied by 5 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/15

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

16 Terms

1
New cards

Prophase (Mitosis)

  • DNA condenses and winds up tightly

  • Nuclear envelope breaks down

  • Centrioles move to opposite ends of the cell and spindles begin to form

  • Spindle fibres stretch across cell

<ul><li><p>DNA condenses and winds up tightly</p></li><li><p>Nuclear envelope breaks down</p></li><li><p>Centrioles move to opposite ends of the cell and spindles begin to form</p></li><li><p>Spindle fibres stretch across cell</p></li></ul><p></p>
2
New cards

Metaphase (Mitosis)

  • Chromosomes line up in the middle of cell

  • Spindle fibres attach to the centromeres

<ul><li><p>Chromosomes line up in the middle of cell</p></li><li><p>Spindle fibres attach to the centromeres</p></li></ul><p></p>
3
New cards

Anaphase (Mitosis)

  • Centromeres divide

  • Chromosome move to opposite ends of the cell

<ul><li><p>Centromeres divide</p></li><li><p>Chromosome move to opposite ends of the cell</p></li></ul><p></p>
4
New cards

Telophase (Mitosis)

  • Chromosomes uncoil

  • Spindle fibres break down

  • New nuclear envelope begins to form

<ul><li><p>Chromosomes uncoil</p></li><li><p>Spindle fibres break down</p></li><li><p>New nuclear envelope begins to form</p></li></ul><p></p>
5
New cards

G1 Stage (Interphase)

  • Cytoplasmic components are replicated

  • The cell grows in size

  • Carries out assigned functions via producing specific proteins

<ul><li><p>Cytoplasmic components are replicated</p></li></ul><ul><li><p>The cell grows in size</p></li><li><p>Carries out assigned functions via producing specific proteins</p></li></ul><p></p>
6
New cards

S Stage (Interphase)

  • All DNA in the nucleus is copied to create two identical strands of each chromosome

<ul><li><p>All DNA in the nucleus is copied to create two identical strands of each chromosome</p></li></ul><p></p>
7
New cards

G2 Stage (Interphase)

  • Second growth stage where mitochondria are replicated

  • DNA is checked and repaired before division

  • Centrioles begin to form

<ul><li><p>Second growth stage where mitochondria are replicated</p></li><li><p>DNA is checked and repaired before division </p></li><li><p>Centrioles begin to form</p></li></ul><p></p>
8
New cards

Cytokinesis

  • The cytoplasm divides along a cleavage furrow

  • New cell membranes form around daughter cells

9
New cards

Prophase 1 (Meiosis)

  • DNA condenses

  • Nuclear envelope breaks down

  • Chromosomes pair up and recombination can occur

  • Centrioles go to either end of the cell and spindle forms

10
New cards

Anaphase 1 (Meiosis)

  • Spindle fibres pull one of each pair of chromosomes to opposite sides of the cell

11
New cards

Telophase 1 (Meiosis)

  • Spindle disappears, nuclear envelope reforms

  • Cytokinesis divides the cells into two

12
New cards

Prophase 2 (Meiosis)

  • Nuclear envelope fragments, centrioles move to opposite ends of the cell and spindle fibres form

13
New cards

Metaphase 2 (Meiosis)

  • Chromosomes line up down the middle of the cell

  • Spindle fibres attach to centromeres

14
New cards

Anaphase 2 (Meiosis)

  • The arms of each chromosome move to each end of the cell

15
New cards

Mitosis

Occurs in most of the body cells where 2 new cells are formed

16
New cards

Meiosis

Only used to produce gametes where 4 new cells are formed