Chapter 12: Cell Cycle Flashcards Preview

Bio > Chapter 12: Cell Cycle > Flashcards

Flashcards in Chapter 12: Cell Cycle Deck (11):
1

omnis cellula e cellula

every cell from a cell; Virchow

2

cell division

reproduction of cells; used in renewal/repair of grown multicellular eukaryotes

3

cell cycle

life of a cell from time its first formed during division until its own division

4

most cell division results in ___

genetically identical daughter cells

5

genome

genetic information/DNA; typical human DNA = 250,000x greater than cell's diameter

6

chromosomes

tightly coiled DNA; has 2 sister chromatids

7

chromatin

DNA and proteins that are the building material of chromosomes; long and thin, single stranded, cell not dividing

8

somatic cells

body cells, mitosis; each contain 46 chromosomes (2 sets of 23)

9

gametes

reproductive cells; sperm and egg; 1 set, half as many chromosomes as somatic cells

10

sister chromatids

joined copies of original chromosome; contain identical DNA molecule, attached by protein complexes called cohesions (aka sister chromatid cohesions)

11

centromere

region of chromosomal DNA where chromatid is attached most closely to sister chromatid