Chromosomes
What is a chromosome?
A condensed form of DNA found during cell division
How many phases does interphase have? And what are they?
Three phases, which are G1, S, and G2
What is mitosis?
The division of the nucleus.
What does cyto- mean in cytokinesis? What does kinesis mean in cytokinesis?
cells; motion by external stimulus
What are cyclins?
Proteins that regulate the cell cycle.
In a chromosome, what does DNA look like?
A thread around a spool
Does interphase take the majority or minority of the cell's life?
The majority
What is the result of Mitosis?
Two identical daughter cells.
In animal cells during cytokinesis, what splits the cell?
A Micros laments ring
Prokaryotic chromosomes have what shape?
A circular shape.
How many separate chromosomes do humans have?
46 chromosomes
What happens during interphase?
Cell growth, DNA replication, and cell growth
What is the acronym for remembering the phases of Mitosis?
PMAT
Why is cytokinesis in plants different from cytokinesis in animal cells?
Because the cell wall is too rigid to be drawn inward.
Why is cell division necessary?
To replace old or damaged cells.
How many genes are in a chromosome?
A chromosome contains thousands of genes
What does the G in G1 and G2 stand for?
It stands for gap.
What role do spindle fibers have in mitosis?
Spindle fibers help evenly divide the chromosomes into their daughter cells.
In plant cells, what forms during cytokinesis?
A cell plate forms.
What are centrioles?
What shape does a Eukaryotic chromosome have?
An X shape
What occurs during the synthesis phase?
The chromosomes are copied.
What is the purpose of mitosis in Eukaryotic cells?
Cell repair and growth
What does cytokinesis complete?
The process of cell division
How does a unicellular eukaryote use mitosis?
For asexual reproduction.