Bio 1100 ECU Exam 3 Practice Questions and Answers
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Course
ECU BIO 1100
Institution
ECU BIO 1100
Meiosis produces what type of cells? Gametes (sex cells)
Mitosis produces what type of cells? Somatic cells
Mitosis + Cytokinesis are responsible for? (3) Growth of cells, Wound Repair, Asexual Reproduction
Gene section of DNA that encodes a specific RNA
Chromosomes are wrapped around... Histon...
Bio 1100 ECU Exam 3 Practice
Questions and Answers
Meiosis produces what type of cells? ✅Gametes (sex cells)
Mitosis produces what type of cells? ✅Somatic cells
Mitosis + Cytokinesis are responsible for? (3) ✅Growth of cells, Wound Repair,
Asexual Reproduction
Gene ✅section of DNA that encodes a specific RNA
Chromosomes are wrapped around... ✅Histones (protein)
In which phase does the cell take up the most time in the cell cycle? ✅Interphase
(rather than cell division)
Where are microtubules made? ✅In the centrosome
Phases of Mitosis (5) ✅Prophase, Prometaphase, Metaphase, Anaphase, Telophase
Cytokinesis ✅Cell division begins (actin-myosin ring causes the plasma membrane to
begin pinching in)
Bacteria divides through... ✅Fission
G1 is eliminated in... ✅rapidly dividing cells
What does MPF stand for? ✅Mitosis-Promoting Factor
What are the 2 subunits of the MPF? ✅Cdk (protein kinase), Cyclin
Cyclin ✅regulatory protein
Cdk ✅target protein for phosphorylation (can be used to activate/deactivate protein)
How is the MPF activated? ✅When it is phosphorylated by a phosphate group at 1 site
Which conformation reflects the active form of an MPF? ✅When a Cyclin binding to a
Cdk which is phosphorylated at 1 site
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