33 terms

Somatic cell

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Body cell and all human cells except for the cells that produce eggs and sperm.
Somatic cell
Cells that produce eggs and sperm
Germ cells
Cells that contain copies of each of their chromosomes (one copy received from each parent)
Somatic cell
Pair of chromosomes is the two copies of a single chromosome found in each somatic cell.
Homologous
The human is a ______________organism, having 23 homologous pairs of chromosomes in each of the somatic cells.
Diploid
The sequence of events in the life of the cell from the moment it is created .
Cell cycle
From the moment it is created at the end of a previous cycle of cell division until it then divides itself, generating two new cells.
Cell cycle
One turn or cycle of the cell consists of two general phase one is
Interphase
One turn or cycle of the cell consists of two general phase one is
Mitosis
The structure that attaches one sister chromatid to another
Centromere
Chromosomes condense and become invisible
Prophase
How many chromosomes in a human cell
46
How many chromosomes is a sister pair chromatid
92
__________________goes through the splitting process twice
Meiosis
The human is a Diploid organism, having_______homologous pairs of chromosomes in each of the somatic cells.
23
The begining when spindle fibers emerge
Prophase
Nuclear envelope breaks down
Prophase
Centrosomes move oposite
Prophase
kinetochores appear
Prometaphase
Mitotic spindle microubules attach to kinetochores
Prometaphase
Chromosomes are lined up
Metaphase
Each sister chromatid is attached to a spindle
Metaphase
Centromeres split in two
Anaphase
Sister cromatids are pulled apart
Anaphase
Spindle fibers that isn't conected start enlongating the cell
Anaphase
The chromosomes begin to decondense
Telophase
Nuclear envelope material surrounds each set of chromosomes
Telephase
spindle breaks down
Telophase
cleavage furrow separates the daughter calls
Cytokinesis
Cell plate separates the daughter cells
cytokinses
Synapsis and crossing over
Unique events in Meiosis (not in mitosis)
Homologous pairs at the metaphase plate.
Unique events in Meiosis (not in mitosis)
Seperation of homologs
Unique events in Meiosis (not in mitosis)
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