Biology 1A03 Test 3 CERTIFICATION FINAL EXAM LATEST
COMPLETE ACTUAL TEST WITH REAL QUESTIONS AND CORRECT
ANSWERS (100% CORRECT VERIFIED SOLUTION) NEWEST
UPDATED VERSION |GUARANTEED PASS.2026-2027 McMaster
University
prophase (mitosis)
identical sister chromatids apparent
centrosomes (microtubules) form mitotic spindle and positioned at
opposite ends of the cell
centromere vs centrosome
centromere: holds together two sister chromatids into 1 chromosome
centrosome: hold together mitotic spindles
, prometaphase
fragmentation of nuclear envelope allows mitotic spindle to attach to
kinetochores on centromeres
kinetochores
The structures on sister chromatids where microtubules attach
1) some microtubules attach directly and pull
2) some k.c are polar and repel the sides of the cell from each
other
, metaphase (mitosis)
chromosomes line up along middle of metaphase plate,
facilitated by kinetochore microtubules attaching to the
kinetochores of each sister chromatid
anaphase (mitosis)
kinetochore microtubules shorten and pull apart chromosomes
polar microtubules repel each other and help elongate the cell
equal segregation of chromosomes (or stop)
, telophase (mitosis)
nuclear envelope reforms giving 2 new daughter nuclei within the
cell chromosomes decondense
spindle microtubules
depolymerized end of mitosis
cytokinesis
division of the cytoplasm
animals: begins with contractile ring, cleavage furrow
separates cell plants: new cell wall formed on cell plate
region
MPFs
mitosis promoting factors : cyclin + CDK (cyclin dependent factors)
COMPLETE ACTUAL TEST WITH REAL QUESTIONS AND CORRECT
ANSWERS (100% CORRECT VERIFIED SOLUTION) NEWEST
UPDATED VERSION |GUARANTEED PASS.2026-2027 McMaster
University
prophase (mitosis)
identical sister chromatids apparent
centrosomes (microtubules) form mitotic spindle and positioned at
opposite ends of the cell
centromere vs centrosome
centromere: holds together two sister chromatids into 1 chromosome
centrosome: hold together mitotic spindles
, prometaphase
fragmentation of nuclear envelope allows mitotic spindle to attach to
kinetochores on centromeres
kinetochores
The structures on sister chromatids where microtubules attach
1) some microtubules attach directly and pull
2) some k.c are polar and repel the sides of the cell from each
other
, metaphase (mitosis)
chromosomes line up along middle of metaphase plate,
facilitated by kinetochore microtubules attaching to the
kinetochores of each sister chromatid
anaphase (mitosis)
kinetochore microtubules shorten and pull apart chromosomes
polar microtubules repel each other and help elongate the cell
equal segregation of chromosomes (or stop)
, telophase (mitosis)
nuclear envelope reforms giving 2 new daughter nuclei within the
cell chromosomes decondense
spindle microtubules
depolymerized end of mitosis
cytokinesis
division of the cytoplasm
animals: begins with contractile ring, cleavage furrow
separates cell plants: new cell wall formed on cell plate
region
MPFs
mitosis promoting factors : cyclin + CDK (cyclin dependent factors)
