Cell Cycle Flashcards
(29 cards)
Cell Cycle
Interphase =
Normal activity
Cell Cycle
M-phase =
Reproduction
Cell Cycle
Cycle in meristems can happen __ a day
2x
others can take up to 150 years
Cell Cycle
Division of the nucleus
Mitosis
Cell Cycle
Divison of the cytoplasm
Cytokinesis
Cell Cycle
3 Interphase steps
G1 phase
S phase
G2 phase
Cell Cycle
G1 phase =
Growth to regular size
Cell Cycle
S-phase =
Synthesis for DNA replication
Cell Cycle
G2 phase =
Organelle duplication
Meiosis
Is ___ part of the cell cycle
Not
Meiosis
Creates __ daughter cells that are genetically distinct
4
Meiosis
Daughter cells have __ the chromosomes
1/2
Meiosis
Ploidy =
How many copies of each chromosome
Meiosis
Ploidy: 1x = 1 copy
4x = __ copies
4 copies
Meiosis
n cells are created by ___
Meiosis
Meiosis
2n cells are created by
Fertilization
Meiosis
8x does mitosis =
8x does meiosis =
8x daughter or, 2n
4x, n
Alternation of Generations
Fertilization -> zygote (2N) -> sporophyte -> sporocyte -> meiosis -> spores (N) -> gametophyte -> mitosis -> gametes -> fertilization
Classification: Naming new species
Step 1
Publish in a journal that is generally available
Classification: Naming new species
Step 2
Preserve the specimen “type specimen” in a place accessible by the public
Classification: Naming cultivars
Names of parents and common name in quotes
Species
2 Leading theories
Morphological species concept
Biological species concept
Species
Morphological species concept =
Organisms of the same species look alike
Species
Morphological species concept problem?
Phenotypic plasticity