Flashcards in Ch. 5- Cell Division Deck (39):
All life depends on...
The ability to reproduce and grow.
Producing of offspring identical to themselves.
Organisms share genetic info to create a new combination resulting in a unique individual.
The cell cycle.
Single cell splits into two
Mother cell to two identical daughter cells.
They continue to divide
Making specialized cells
The cell cycle is made of a
division phase and an interphase
The division phase is composed of...
Mitosis and cytokines.
Cell growth and DNA replication
---same DNA in each chromatid
Chromosomes contain both...
DNA and proteins
Unduplicated or duplicated
During the G-phases the cell is growing
During the S phases, chromosomes go from Unduplicated to duplicated
Stages of mitosis
Cell begins to breakdown
Chromosomes begging condense, shorter, and thicker.
Spindle fibres and centrioles begin to form
2nd phase of mitosis
Chromosomes(made of sister chromatids) line up on the equator
Spindle fibres attach to chromosomes and centrioles
Chromosomes are entangled
3rd phase of mitosis
Centromeres are pulled apart and sister chromatids are separated
Last phase of mitosis
Spindle fibres dissolve, nuclear membrane forms
Chromosomes begin to de-condense -disappear
--Right after mitosis
The cytoplasm begins to divide
Pinching cell in half
Completing cel division
Cells have a set number of divisions
-age of cells, a reason they stop dividing
Sperm and cancerous cell are the only two cells that divide endlessly
Repeating segment on the end of DNA
Both clone and the parent have the exact same DNA
Originate from a single egg and a single sperm
Originate from two eggs and two sperm
Identical twins not completely separated
Abnormal cell division
Cancer cells divide fast, Can divide in isolation
Some cells live longer
Some cells lost their ability to reproduce.
Forms sex cells and gametes
Two nuclear divisions
Meiosis 1 is referred to as
Where 2n turns into n
The formation of sex cells during meiosis is called
For female it's called oogenesis.
For makes it's called spermatogenesis
Occurs when 2 homologous chromosomes or 2 sister chromatids fail to separate.
Chromosomes 1-22 are.....
Monopsony 23 x_
Trisomy 23 xxy
Alteration of gamerution
Organisms that alternate between diploids 2n and haploids n
Asexual form of reproduction
Hydra budding or starfish
Unfertalized egg becomes an individual
Ex. Honey bees