Biology chapter 8

5 Written Questions

1. Short pieces of DNA that are built away from the replication fork from primer to primer
2. The enzyme that is the proofreader for replication errors
3. The nuclear membrane dissolves during this specific time
4. When the cytoplasm splits completely apart creating 2 new daughter cells
5. the protien shaped like a handle and located on each paired DNA copy for spindel attachement

5 Matching Questions

1. G0
2. G1
3. Helicase
4. synthesis
5. DNA polymerase III

1. a During this first stage of the cell cycle the cell grows and makes proteins
2. b The enzyme that breaks the hydrogen bonds between the bases on the parent DNA strandfor replication
3. c The stage of the cell cycle when DNA replicates itself
4. d Cells like central nervous system neurons and muscle fibers enter this stage of the cell cycle, never divide
5. e The enzyme that builds the new strand of DNA a;ong the exposed bases

5 Multiple Choice Questions

1. The pinched in place along a DNA strand where the chromatids are attached
   1. Metaphase
   2. centromere
   3. Primase
   4. Kinetochore
2. chromatids are pulled apart by the spindel fibers during this specific time
   1. Metaphase
   2. anaphase
   3. telophase
   4. prophase
3. When half the parent strand of DNA is saved in each new strand
   1. Helicase
   2. semi-conservative
   3. Kinetochore
   4. centromere
4. when 2 nuclei form around chromosomes at oppisite ends of the cell
   1. anaphase
   2. Metaphase
   3. telophase
   4. prophase
5. The enzyme that untwist the helix of DNA before replication begins
   1. Primase
   2. Ligase
   3. Gyrase
   4. Helicase

5 True/False Questions

1. Primase → this enzyme lays down some RNA bases to get replication started

   True        False

2. DNA polymerase I → The enzyme that removes RNA and relpaces it with DNA nucleotides

   True        False

3. single stranded biding protiens → The proteins that keep the parent DNA strands from closing back togeather during replication

   True        False

4. Ligase → Thsi enzyme "glues" togeather segments along the laging strand

   True        False

5. Metaphase → when 2 nuclei form around chromosomes at oppisite ends of the cell

   True        False