BIOL251 - EXAM #3 (CHAPTER 12 MITOSIS) QUESTIONS
WITH CORRECT ANSWERS 2026 RATED A+
1. Mitosis-ANSWER- - division of the nucleus- Essential for growth, repair, and asexual
reproduction.
2. Cytokinesis-ANSWER- division of the cytoplasm
3. Cell Cycle-ANSWER- - ordered sequence of events from the time a cell is first formed from a
dividing parent cell, until its
own division- Interphase + Mitotic (M) Phase
4. Asexual Reproduction --ANSWER- - produces offspring identical to parents/original cell-
inherits all genes from one parent
5. Interphase-ANSWER- - non-dividing- duplication of cell contents (S phase)- nucleoli, sites of
ribosome assembly, are visible
6. Prophase-ANSWER- - in the cytoplasm, microtubules begin to emerge from centrosomes,
forming the spindle.- In the nucleus, chromosomes coil and become compact and nucleoli
dissappear
7. Prometaphase-ANSWER- - Spindle microtubules reach chromosomes, where they attach at
kinetochores on the
centromeres of sister chromatids and move chromosomes to the center of the cell through
associated protein "motors."- Other microtubules meet those from opposite ends- Nuclear
envelope disappears
8. Metaphase-ANSWER- - mitotic spindle is fully formed.- Chromosomes align at the cell
equator.- Kinetochores of sister chromatids are facing opposite poles of the spindle.
9. Anaphase-ANSWER- - Sister chromatids separate at the centromeres.- Daughter
chromosomes are moved to opposite poles of the cell as motor proteins move the
chromosomes along the
spindle microtubules and kinetochore microtubules shorten.- The cell elongates due to
lengthening of nonkinetochore microtubules
10. Telophase-ANSWER- - Cell continues to elongate.- The nuclear envelope forms around
chromosomes at each pole, establishing daughter nuclei.- Chromatin uncoils and nucleoli
reappear.- The spindle disappears.
WITH CORRECT ANSWERS 2026 RATED A+
1. Mitosis-ANSWER- - division of the nucleus- Essential for growth, repair, and asexual
reproduction.
2. Cytokinesis-ANSWER- division of the cytoplasm
3. Cell Cycle-ANSWER- - ordered sequence of events from the time a cell is first formed from a
dividing parent cell, until its
own division- Interphase + Mitotic (M) Phase
4. Asexual Reproduction --ANSWER- - produces offspring identical to parents/original cell-
inherits all genes from one parent
5. Interphase-ANSWER- - non-dividing- duplication of cell contents (S phase)- nucleoli, sites of
ribosome assembly, are visible
6. Prophase-ANSWER- - in the cytoplasm, microtubules begin to emerge from centrosomes,
forming the spindle.- In the nucleus, chromosomes coil and become compact and nucleoli
dissappear
7. Prometaphase-ANSWER- - Spindle microtubules reach chromosomes, where they attach at
kinetochores on the
centromeres of sister chromatids and move chromosomes to the center of the cell through
associated protein "motors."- Other microtubules meet those from opposite ends- Nuclear
envelope disappears
8. Metaphase-ANSWER- - mitotic spindle is fully formed.- Chromosomes align at the cell
equator.- Kinetochores of sister chromatids are facing opposite poles of the spindle.
9. Anaphase-ANSWER- - Sister chromatids separate at the centromeres.- Daughter
chromosomes are moved to opposite poles of the cell as motor proteins move the
chromosomes along the
spindle microtubules and kinetochore microtubules shorten.- The cell elongates due to
lengthening of nonkinetochore microtubules
10. Telophase-ANSWER- - Cell continues to elongate.- The nuclear envelope forms around
chromosomes at each pole, establishing daughter nuclei.- Chromatin uncoils and nucleoli
reappear.- The spindle disappears.
