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
After telophase, _____ will divide the cell into two.
cytokinesis
DNA is in the form of ____ in interphase and it condenses into ____ during mitosis.
chromatin, chromosomes
Chromosome condensation happens in ____. Spindle formation also begins.
prophase
begins after the completion of the breakdown of the nuclear envelope.
Prometaphase
involves the alignment of the chromosomes in the metaphase plate.
Metaphase
The sister chromatids move to the opposite poles of the cell in ____
anaphase.
ends when two nuclei are formed in the cell.
Telophase
