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BIOL 1406- Exam 3 Questions with Detailed
Verified Answers
Cell Cycle Ans: -DNA synthesis- where DNA is made into an exact copy
(interphase)
-Cell growth; interphase G1 & G2
Interphase Ans: -Chromosomes duplicate(chromatin)
-DNA spends most of the time (90%) as chromatin
Mitosis Ans: -Nuclear division
-important part of the cell cycle, in which the nucleus duplicates
-2 new daughter cells are made & are identical to the one parent cell
Chromosomes Ans: tightly bound in a dividing cell to allow for DNA
sorting into daughter cells
Chromatin Ans: DNA & protein loosely bound in a non-dividing cell
Sister chromatids Ans: -Exact DNA
-Identical DNA sequences
-Centromere joins them together
Binary Fission Ans: Prokaryotes (bacteria) undergo binary fission
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4 phases of Mitosis Ans: P-Prophase
M-Metaphase
A-Anaphase
T-Telophase
Prophase Ans: -Chromosomes appear
-Nuclear membrane & nucleolus disappear
Metaphase Ans: -Sister chromatids line up in the center of the cell
(metaphase plate)
Anaphase Ans: -Sister chromatids separate into chromatids & move to
opposite sides of the cell
-Chromatids are now chromosomes again
Telophase Ans: -Nuclear membrane & nucleus reappear (cleavage
furrow/cell plate)
-Chromosomes uncoil to become chromatin again
-Cytokinesis begins
Cytokinesis Ans: -Division of cytoplasm in telophase
-Animal cells: cleavage furrow(pinching)
-Plant cells: cell plate
Meiosis & why does it occur? Ans: -Reduction division
-Reproduction of sex cells
-To reduce the # of chromosomes to produce gametes
BIOL 1406- Exam 3 Questions with Detailed
Verified Answers
Cell Cycle Ans: -DNA synthesis- where DNA is made into an exact copy
(interphase)
-Cell growth; interphase G1 & G2
Interphase Ans: -Chromosomes duplicate(chromatin)
-DNA spends most of the time (90%) as chromatin
Mitosis Ans: -Nuclear division
-important part of the cell cycle, in which the nucleus duplicates
-2 new daughter cells are made & are identical to the one parent cell
Chromosomes Ans: tightly bound in a dividing cell to allow for DNA
sorting into daughter cells
Chromatin Ans: DNA & protein loosely bound in a non-dividing cell
Sister chromatids Ans: -Exact DNA
-Identical DNA sequences
-Centromere joins them together
Binary Fission Ans: Prokaryotes (bacteria) undergo binary fission
, Page | 2
4 phases of Mitosis Ans: P-Prophase
M-Metaphase
A-Anaphase
T-Telophase
Prophase Ans: -Chromosomes appear
-Nuclear membrane & nucleolus disappear
Metaphase Ans: -Sister chromatids line up in the center of the cell
(metaphase plate)
Anaphase Ans: -Sister chromatids separate into chromatids & move to
opposite sides of the cell
-Chromatids are now chromosomes again
Telophase Ans: -Nuclear membrane & nucleus reappear (cleavage
furrow/cell plate)
-Chromosomes uncoil to become chromatin again
-Cytokinesis begins
Cytokinesis Ans: -Division of cytoplasm in telophase
-Animal cells: cleavage furrow(pinching)
-Plant cells: cell plate
Meiosis & why does it occur? Ans: -Reduction division
-Reproduction of sex cells
-To reduce the # of chromosomes to produce gametes
