AQA Biology 11.2 mitosis

Beschreibung

AS - Level AS Biology (unit 2 - 11. the cell cycle) Karteikarten am AQA Biology 11.2 mitosis, erstellt von Charlotte Hewson am 26/03/2015.
Charlotte Hewson
Karteikarten von Charlotte Hewson, aktualisiert more than 1 year ago
Charlotte Hewson
Erstellt von Charlotte Hewson vor mehr als 9 Jahre
564
29

Zusammenfassung der Ressource

Frage Antworten
what is mitosis? produces 2 new daughter nuclei that have the same number of chromosomes as the parent cell and eachother
what is meiosis? produces 4 daughter nuclei, each with half the number of chromosomes as the parent cell.
what is the name of the stage before mitosis where the cell doesn't divide? interphase
what are the 4 stages of mitosis? -prophase -metaphase -anaphase -telophase
what happens in interphase? -cell is actively synthesising proteins -chromosomes are invisible -prior to mitosis , DNA replicates
what happens in prophase? -chromosomes become visible -nuclear envelope disintegrates -nucleolus disappears
what happens during metaphase? -spindle forms -chromosomes line up on equator of the cell
what happens during anaphase? -spindle fibres attached to chromatids contract -chromatids are pulled towards poles
what happens during telophase? -chromatids reach poles and become indistinct -nuclear envelope reforms -nucleolus reforms -spindle disintegrates -cell division begins
what are the three main reasons for making exact copies of the existing cells? -growth -differentiation -repair
are sperm and egg cells haploid or diploid? haploid
what do they become when they fuse? diploid cells
Zusammenfassung anzeigen Zusammenfassung ausblenden

ähnlicher Inhalt

Biological Definitions
Yamminnnn
F211 Cells Keywords and Info
Gurdev Manchanda
Function and Structure of DNA
Elena Cade
AQA Biology 12.1 cellular organisation
Charlotte Hewson
AQA Biology 11.1 replication of DNA
Charlotte Hewson
Nucleic Acids
Jessica Phillips
AQA Biology 3.3 Structure of an epithelial cell
Charlotte Hewson
Cell Transport
Elena Cade
Unit 1 flashcards
C R
Cells and the Immune System
Eleanor H
AQA AS Biology Unit 2 DNA and Meiosis
elliedee