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What is all the DNA in a cell called?
Genome
How many individual chromosomes are in a cell during G1 (prior to DNA duplication)?
46
During which phase of the Cell Cycle do cells grow in size?
G1 and G2
During crossing over what is the zipper like structure that holds the homologs together tightly?
synaptonemal complex
True or False: Crossing over occurs in both meiosis and mitosis
False
What structure consists of 2 bundles of microtubules at right angles?
Centrioles
True or False: Daughter cells from mitosis are genetically identical to their parent
True
What happens in G1?
cell growth, protein & organelle replication
What happens in S phase?
genetic information is duplicated
What happens in G2 phase?
second growth phase occurs and the cells undergo the G2 checkpoint
What is the G2 Checkpoint?
The cycle cell "checks" the cells and stops until MPF is released to trigger the passage of the cell into the M phase
The (blank) is the only checkpoint in the cell cycle that can totally and entirely stop the cell cycle forever
G1
What cytoskeletal structure makes up the mitotic spindle?
microtubules
A haploid cell (in a typical human) has how many chromosomes?
23
What are identical copies of a chromosome?
sister chromatids
True or False: Asexual reproduction involves the fusion of gametes.
false
When does crossing over occur in Meiosis?
Prophase I
What gives rise to genetic variability? (3)
random fertilization, independent assortment of chromosomes, mutations
Note 
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