Chromosome

How many chromosomes are there
49
46
29
How many pairs are there?
29
23
27
22
First 22 pairs
Autosomes
Homologus chromosome
Sex chromosome
Female
Xx
Xy
Which pair determines the sex of the individual
Homologus chromosome
Autosomes
Sex chromosome
46 2(n) paired, 2 copies of each
Diploid
Haploid
The cell cyle deals with prokaryotic and eukaryotic cells
True
False
What is a karyotype?
What is a karyotype?
How many parts are in the cell cyle?
5
3
2
Cell doubles to organelles and grows in size
G1
G2
S
Mitosis
Interphase includes
Mitosis, cytokenisis
G1, s, g2 stage
S stage
DNA replication occurs
Cell doubles
Proteins needed for division are synthesized
Proteins needed for divisioln are synthesized
G1
S
Mitosis
G2
Mitosis, cytokinesis
Cell division (step 2)
Interphase
Interphase takes up the bulk of the cell cycle
True
False
Cells that tdivide uncontrollably cause
Cancer
Down syndrome
Pregnancy
What is the point of the checkpoint
Replicate
Put in cell cycle to control or regulate cell
Put in cell cycle to detatch cells
The cell is comitted to divide is
G3 is passed
G1 is passed
G2 is passed
Why does g2 cycle pause
To verify it is detatched
To verify g1 completed
To verify DNA replication
M cycle pass to verify
DNA replication
Spindle assembly
Chromosome replication occurs at g1 stage
True
False
Dna contains chromatin ( DNA and proteins )
True
False
When dividing, they are made up 2 identical parts called
Chromatids
Chromosomes
Sister chromasomes
Sister chromatids
The circle in the middle of the sister chromatids is called the centromere
True
False
Mitosis includes every cell except sex cells
True
False
Diploid cells
Make 4 stages
Make and divide stages
Make and divide an exact copy of its nucelus
Why are 2 daughter cells identical
Because they are like sister chromatids
Because they have the same number and same type
What are the 4 stages of mitosis
Spindle, g1, g2, s
Prophase, metaphase, anaphase, telophase
Chromosomes condense and become visible, spindle fibers appear and attatch to centromeres
Mitosis
Anapahse
Telophase
Prophase
Chromosomes line up at the middlde of the cell
Anophase4
Prophase
Telophase
Metaphase
Seperate, opposite ends, back being called chromosomes
Metaphase
Anophase
Prophase
Telaphase
2 daughter cells are formed
Telaphase
Metaphase
Anaphase
Prophase
Meiosis and mitosis are the same
True
False
In meiosis, sex cells increase their numbers
True
False
How many divisions occur to make haploid cells in meiosis
There are 4 daughter cells at the end of meiosis
True
False
G1 stage
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
S stage
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Mitosis
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
G2 stage
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Cytokenisis
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Prophase
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Anophase
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Correct order of mitosis
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Metaphase
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
Telophase
Prophase, metaphase, anophase, telaphase
2 daughter cells are formed
Nuclear division
Cytoplasmic division
Seperate, go to opposite ends
Chromosomes condense and become visible, spindle fibers appear and attatch to the centromeres
Chromsomes line up at the middle of the cell
Proteins needed for division are synthesized
Dna replication occur
Celll doubles organelles, cell grows in size
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