Chapter 11 Flashcards
proto oncogenes can
mutate into oncogenes
oncogenes
help transform a normal cell into a tumor cell
not a cleavage furrow but a
cell plate
retain PM adhesion proteins that help them properly ahchored to other cells
benign
Dolly was cloned from an
adult somatic cell
Telomerase
reverse telomere shortening o
when does telomere shortening occur
after DNA replication
Proteins that regulate expression of dNA repair enzymes
tumor suppressor genes
cancer occurs when a malignant neoplasm
physically and metabolically disrupts body tissues
cell does what it’s supposed to
interphase
Centrioles are
microtule barrels at right angles to each other
dense region in the cytoplasm containing centrioles
centrosome
what breaks down in prophase
nuclear envelope breaks down and nucleolus disappears
Prophase
centrioles move to opposite poles and spindle fibers form
In prophase chromosomes are now __
condensed and visible
where are kintekore fivers located
centromere
what do kintecore fibers do
pull chromosomes
polar fibers go from ____ and provide ____
pole to pole
stability
Mitotic spindle in completely formed (made of spindle fibers and microtubules)
metaphase
the middle aka
metaphase plate
___ are pulled to opposite poles
sister chromatids
after pulled to opposite pulls, they are referred to as
true chromosomes
Telophase: __ forms around each __
nuclear envelope
chromosome
is nucleolus visible in telophase?
yes
What disassembles in telophase
spindle fibers
after PMAT cells go to
interphase
are centrioles already there in interphase
yes
what are 2 main parts of cell cycle
interphase
cell division
what is interphase made of
g1, s, g2
what is cell division made of
mitosis
cytokinesis