QUIZ 4.1 Flashcards
refers to how a cell divides to produce new cells.
Mitosis
DNA in interphase is found in the form of chromatin which condenses during ___
mitosis
Sister Chromatid Parts
● Telomere
● Centromere
● Kinetochore
● Chromosome Arm
● Chromatid
23 is the ____ number whereas 46 is the ___ number.
haploid, diploid
Haploid is often represented as ____ while diploid is ___.
n, 2n
The number of sets of chromosomes that a cell or an organism has is known as
ploidy
Mitosis (body cells) are ___ Haploid or Diploid
Diploid
Meiosis (sex cell / gametes ) are ___ Haploid or Diploid
Haploid
Mitosis is also divided into multiple phases.
● Prophase
● Metaphase
● Anaphase
● Telophase
● The chromatin condense into chromosomes.
● The nucleolus disintegrates
● The mitotic spindle starts to form.
Prophase
● It begins after the nuclear envelope breaks down.
● The centrosomes move to opposite poles.
● The kinetochores found at the centromeres become apparent
Prometaphase
● The microtubules of the mitotic spindle attach and interact with the kinetochores of the chromosomes.
● The chromosomes align at the center of the cell, in the metaphase plate.
Metaphase
● The mitotic spindle pulls and separates the sister chromatids apart.
●The chromatids, now called daughter chromatids, are then pulled toward the opposite poles.
Anaphase
● Daughter chromatids decondense.
● In animals, the boundary of the new cells is known as the cleavage furrow.
●In plants, it is known as the **cell plate. **
Telophase & Cytokinesis
____ is not a phase of mitosis but is closely related to it.
Cytokinesis
