Review: DNA & The Cell Cycle

Master the cell cycle and DNA replication with this biology review! Includes phases, DNA pairing, and chromosome counts.

Use the image below to identify each part of the cell cycle. A = InterphaseB = G1C = SD = G2E = ProphaseF = MetaphaseG = AnaphaseH = TelophaseI = MitosisJ = Cytokinesis Match the following with the proper part of the cell cycle. Interphase DNA Replicates Organelles Replicate Cell grows in size Longest part of the cell cycle Prophase Centrioles move to the poles Nuclear envelope dissolves Chromatin coils to form chromosomes Spindle fibers begin to appear Metaphase Third checkpoint of the cell cycle Chromosomes line up down the middle of the cell Spindle fibers attach to the chromosomes at the centromere Anaphase Spindle fibers pull and separate sister chromatids Telophase Nuclear envelopes form Chromosomes uncoil into chromatin Spindle fibers dissolve First phase where two nuclei are visible Cytokinesis Part of cell division - Not a part of mitosis Cytoplasm pinches in half Two cells are formed What is the end product of M phase? 4 daughter cells 4 gametes 2 daughter cells 2 gametes Match the term with the description. Chromatin Loosely packed DNA Chromosome Tightly packed strands of DNA Chromatid Single strands of duplicated chromosomes What is the longest phase of the cell cycle? Cytokinesis Mitosis Metaphase Interphase A Great White Shark has 82 chromosomes. When its cells undergo M phase, how many daughter cells are made? 1 2 4 A Great White Shark has 82 chromosomes. How many chromosomes will the daughter cell have? 82 41 164 Match the phase of cell division with its image Prophase Telophase Anaphase Metaphase Cytokinesis In animal cells, what structure pulls chromatids apart during mitosis? Centromeres Centrioles Cytoplasm What is the correct order of the cell cycle? G1 --> M --> G2 ---> S --> C G1 --> S --> G2 ---> M --> C G1 --> C--> G2 ---> S --> M G1 --> M --> S---> G2 --> C The nitrogen bases of DNA ALWAYS pair up the same way. Match the correct bases together. Adenine (A) Thymine (T) Cytosine (C) Guanine (G) Match the term with the description. Interphase The parent cell. DNA in the form of chromatin. Cell grows and DNA is copied. Prophase The nuclear membrane disappears. The spindle and centrioles appear. DNA in the form of chromosomes. Metaphase Chromatids line up along the equator. Anaphase The sister chromatids are separated to poles. Telophase A nuclear membrane forms around the chromosomes. Cell plate forms in plant cell division. Animal cells form a cell furrow. Cytokinesis Division of the Cytoplasm. Two daughter cells formed. Match the parts to the image: A adenine T thymine C Cytosine G guanine X Deoxyriobose Sugar Y Nitrogen Bases W Phosphate In which of the following phases of the cell cycle is DNA replicated? G2 of interphase G1 of interphase S of interphase Mitosis cytokinesis What is the gray blob in this gif representing? DNA ligase enzymes glueing in free nucleotides Thymine nucleotides bonding with Adenine nucleotides Helicase enzymes unzipping and unwinding the DNA double helix DNA polymerase enzymes forming hydrogen bonds to recreate the double helix shape Use the image below to identify the phases. (THEY ARE NOT IN ORDER) A = ProphaseB = TelophaseC = MetaphaseD = InterphaseE = Anaphase Why is DNA replication considered "semi-conservative?"