Mitosis Flashcards
What does Mitosis produce?
What is Mitosis used for?
What is mitosis?
Mitosis produces 2 daughter cells both genetically identical
Mitosis is used for cell growth, repair and reproduction.
Mitosis is nuclear division
What is the cell cycle stage?
Cell cycle stage: G1,S-Phase,G2,Mitosis
Interphase:G1, S-Phase and G2
What occurs in interphase?
Interphase: G1, S-Phase and G2
G1-Protein Synthesis and cell grows larger
S-Phase - DNA Replication
G2- Additional Growth of the cell
Chromosome not visible in prophase
What occurs in Prophase?
Prophase:
Chromosome condense and becomes a visible
Nuclear envelope breaks down to allow cell to divide later on
Mitotic Spindles form
What is Metaphase?
Chromosome line up at the equator of the cell
Mitotic Spindles attach to centromere
What is Anaphase?
Sister chromatids Separate at centromere and pulled to opposite poles of the cell by the mitotic Spindles
What is telophase?
Mitotic Spindles disappear and nuclear Envelope reformed
Chromosome start to de-condense
What is the last stage Mitosis?
Cytokenisis - cell division occurs
What is the definition of Cytokenisis?
Division of the cell
How do cells divide in prokaryotic cells?
Binary fission
What is the first two steps in Binary Fission?
DNA copies and replicates it self both copies stay attached to cell membrane
Bacteria grows larger and the 2 DNA stands separate and move to either end of membrane
How are two new prokaryotic cells produced?
[last two steps in Binary Fission]
The bacteria grows larger and 2DNA strands move to either side of membrane
Cell membrane bend inwards in the middle
Cytokenisis occurs producing 2 daughter cells produced with variable DNA molecules in them