Biology question and answers for December 22, 2023
- Q QUESTION 3 Identify the structure s indicated on the chromosomes shown This whole structure
- Q QUESTION 4 Identify the structure s indicated on the chromosomes s
- Q Stage of cells of cells Time min Time hr Interphase Prophase Metaphase Anaphase Telophase Total of cells of cells total of cells 36 x 100 100 The average time for...
- Q alse 3 pts each Indicate whether the statement is true or false If true explain why it is true and or give examples to support it If false explain why...
- Q Which of the following is used during animal cell cytokinesis that is not used for mitosis Dynein Kinesin Myosin Dynein and kinesin
- Q Which type s of microtubules undergo end polymerization during anaphase Select all that apply astral polar kinetochore None of them
- Q Which of the labeled structures in the diagram below are kinetochore microtubules OE C B D AF OF TA B1 C IME F
- Q Which of the following does NOT specifically require microtubules Mitosis Plant cell cytokinesis Animal cell cytokinesis
- Q Paclitaxel is an effective cancer chemotherapy agent because it inhibits microtubule depolymerization It must therefore prevent DNA Replication Spindle assembly O Segregation of chromosomes during anaphase ODNA condensation
- Q Which type s of microtubules undergo end depolymerization at anaphase Select all that apply astral polar None of them kinetochore
- Q Which of the following would be likely to arrest cells during metaphase A mutation in the gene encoding cohesin that makes it resistant to protease activity Something that stabilizes the...
- Q Which of the labeled structures in the diagram below is a centromere A B A B C D None of the above D E F
- Q Why are the events of mitosis so important to the cell They ensure that each daughter cell inherits the correct type and number of chromosomes They ensure that DNA is...
- Q Imagine you have become a world famous oncology researcher and you discovered a novel mutation in a G1 S cyclin that is found in some of your patients Which of...
- Q In which phase s of the cell cycle is the status of the DNA assessed and if there are any problems the cell cycle is arrested Both G1 and G2...
- Q The image below shows a gel electrophoresis of DNA from a population of cells This population of cells must be undergoing 1200 1000 800 600 400 200 Cytokinesis Mitosis Apoptosis...
- Q Match each definition to the correct term below The region of the chromosome where the two copies are held together after A Centriole DNA replication This may be near the...
- Q Which of the following would be expected to prevent cytokinesis in plants but not in animals Inhibition of dynein Inhibition of kinesin OOO Inhibition of myosin Inhibition of either dynein...
- Q Imagine that you discover a novel mutation in a G1 S cyclin that is found in some of your patients with esophogeal cancer Which of the following cyclin mutations would...
- Q Several vinca alkaloids from the Madagascar periwinkle are effective anti cancer compounds Vinca alkaloids inhibit microutuble polymerization They therefore inhibit proliferation by preventing Segregation of chromosomes during anaphase DNA Replication...
- Q Which of the following does NOT happen during M phase Nuclear envelope breakdown Nuclear envelope reformation Separation of homologous chromosomes Separation of sister chromatids
- Q Why is a cell that results from fertilization genetically different from the cells of the parents OA Because the cell has an incomplete set of chromosomes B Because the cell...
- Q What does ploidy refer to and what does 2n mean If a 2n 2 cell underwent mitosis what would be the result If that same cell underwent meiosis what would...
- Q Which of the following is necessary in order for natural selection to act on a population OA equal chance of survival for all individuals OB asexual reproduction through mitosis OC...
- Q 6 Compare and contrast mitosis and meiosis with respect to their genetic outcomes
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