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- 1. Multiple Choice
sequenceC,D, B, A, F, ED,A,F,C,E,BB,E,C,F,A,DC,B,D,A E,F - 2. Multiple ChoiceStructure (b) is a ____.chromosomechromatidcentromere
- 3. Multiple ChoiceDNA is replicated during ______ of the cell cycle.G1SG2G0
- 4. Multiple Choice
G1 is associated with what event?
doubling of cell content
DNA replication
The beginning of mitosis
breakdown of the nuclear membrane
- 5. Multiple Choice
The amount of DNA in a cell is measured right after mitosis and found to be 8 picograms. How many picograms of DNA would be found in a nucleus in the G2 phase?
4
8
16
24
- 6. Multiple ChoiceWhy do cells go through cell divisionGrowthReproductionRepairAll of the above
- 7. Multiple ChoiceThe phase of mitosis in which the sister chromatids separate from each otherprophasemetaphaseanaphasetelophase
- 8. Multiple ChoiceIn mitosis, the two resulting cells aredifferent from the starting cell and identical to each other.different from the starting cell and different from each other.identical to the starting cell and different from each other.identical to the starting cell and identical to each other.
- 9. Multiple ChoiceWhich of the following shows the correct sequence of the cell cycle?Mitosis-> G1->S->G2->cytokinesisS->G1-> G2-> mitosis-> cytokinesiscytokinesis->mitosis->G1->S->G2G1->S->G2->mitosis->cytokinesis
- 10. Multiple ChoiceWhich of the following shows the correct sequence of the cell cycle?Mitosis-> G1->S->G2->cytokinesisS->G1-> G2-> mitosis-> cytokinesiscytokinesis->mitosis->G1->S->G2G1->S->G2->mitosis->cytokinesis
- 11. Multiple ChoiceIn which phase of mitosis do the sister chromatids line up on the equator of the cell?ProphaseMetaphaseAnaphaseTelophase
- 12. Multiple ChoiceIn which phase of mitosis does the nucleus disappear, centrioles move to the poles, and chromosomes condense into sister chromatids?ProphaseMetaphaseAnaphaseTelophase
- 13. Multiple ChoiceWhat phase does a cell stay in the longest?interphasecell divisioncytokinesismitosis
- 14. Multiple ChoiceWhat is the role of the spindle during mitosis?It divides the cell in half.It duplicates the DNA.It breaks down the nuclear membrane.It helps separate the chromosomes.
- 15. Multiple ChoiceA pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are calledsister chromotidscentromereshomologous chromosomesautosomes
- 16. Multiple ChoiceWhat is the sex of this individual?femalemale
- 17. Multiple ChoiceHow does mitosis in plant cells differ from mitosis in animal cells?animal cells form a cell plateplant cells form a cell plateplant cells go through the process in reverseplant cells go through two rounds of mitosis while animal cells just do one
- 18. Multiple ChoiceWhich of the following phrases best describes cytokenesisdivision of the cytoplasmdivision of the nucleusdivision of DNAdivision of surface area
- 19. Multiple ChoiceThe process by which the nuclear material is divided equally between two new cellsmitosiscancerspindlecentromere
- 20. Multiple ChoiceChromosome movement in mitosis and meiosis is regulated bymicrotubulesmicrofilamentsintermediate filamentsAll of thiese
- 21. Multiple ChoiceThe cleavage furrow in cytokinesis is mediated bymicrotubulesmicrofilamentsintermediate filamentsAll of thiese
- 22. Multiple ChoiceChromosomes and genes are replicated duringprophasetelophasemetaphaseinterphase
- 23. Multiple ChoiceThe uncontrolled division of cells can lead to:cancermitosismeiosiscellular recombination
- 24. Multiple ChoiceThe process of going from a diploid cell to a haploid cell occurs duringmitosismeiosisbinary fissioninterphase
- 25. Multiple Choice
Crossing over involves:
synapsis
formation of a tetrad
alignment of homologous chromosomes
all of the above
- 26. Multiple ChoiceWhen a chromosome is NOT dividing, what form does it take?chromatidchromatinchromosomecentromere
- 27. Multiple ChoiceThe point of attachment between two sister chromatids is calledkinetochorecentromerechromosomespindle
- 28. Multiple ChoiceIf a sample of human cheek cells was examined, the cells should have a chromosome number that ishaploid; 23diploid; 23haploid; 46diploid; 46
- 29. Multiple Choice
G1 is associated with what event?
normal growth and cell function
DNA replication
The beginning of mitosis
breakdown of the nuclear membrane
- 30. Multiple Choice
Why do cells such as neurons divide very rarely?
They no longer have active nuclei
They have entered G0
they can no longer break down cyclins
They no longer produce MPF
- 31. Multiple Choice
What two components make an active MPF
a growth factor and a mitotic factor
ATP synthetase and a protease
cyclin and tubulin
cyclin and a cyclin-dependent kinase
- 32. Multiple Choice
Which molecule triggers the cell to pass the G2 checkpoint and enter mitosis?
PDGF
MPF
cyclin
cdk
- 33. Multiple Choice
Cells from cancerous tumors usually have an unusual number of chromosomes, and unusual looking chromosomes. What could explain this?
cancer cells are in G0
cancer cells are arrested in the S phase
cell cycle check points are not in place
transformation introduces new chromosomes to cells
- 34. Multiple ChoiceThe purpose of meiosis is to form ________ cells.bodysexsomaticbrain
- 35. Multiple ChoiceWhy do we need meiosis?To double the number of chromosomes going into sex cellsTo halve the number of chromosomes going into sex cellsTo triple the number of chromosomes going into sex cellsTo not change the number of chromosomes going into sex cells
- 36. Multiple ChoiceMeiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.23, 4646, 232, 450, 100
- 37. Multiple ChoiceWhat is it called when a sperm and egg meet?meiosisfertilizationcell divisionmitosis
- 38. Multiple Choice
Anaphase
Cytokinesis
Telophase
Metaphase
- Answer choicesTagsAnswer choicesTags