000 autosomes centromeres centrosomes gamete 1000 chromatid ooctyes meiosis I interphase The part of the cell cycle during which the chromosomes are not visible. Chromosomes that do not differ between the sexes. Cells in the ovaries that undergo meiosis. One of the two identical halves of a replicated chromosome. The cell division during which homologous chromosomes, not chromatids, are separated. Microtubule organizing centers at the spindle poles. The connection between sister chromatids. TANGGA DA WEPON TUNA FIUNGO

000 autosomes centromeres centrosomes gamete 1000 chromatid ooctyes meiosis I interphase The part of the cell cycle during which the chromosomes are not visible. Chromosomes that do not differ between the sexes. Cells in the ovaries that undergo meiosis. One of the two identical halves of a replicated chromosome. The cell division during which homologous chromosomes, not chromatids, are separated. Microtubule organizing centers at the spindle poles. The connection between sister chromatids. TANGGA DA WEPON TUNA FIUNGO

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter10: Cell Reproduction

Section: Chapter Questions

Problem 10RQ: The mitotic spindles arise from which cell structure? centromere centroscme kinetochore cleavage...

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The mitotic spindles arise from which cell structure? centromere centroscme kinetochore cleavage furrow
Indicate the stage of mitosis (interphase = I, prophase = P, metaphase = M, anaphase = A, telophase = T) during which each of the following events occur. chromatid doublets separate to individual chromosomescentriole replicatesreplicated chromosomes (chromatid doublets) are arranged in single file next to one another at the cell's equatornuclear membrane is disappearingspindle fibers form and become visiblecell plate (plant) or cleavage furrow (animal) forms and is visiblechromosomes are at opposite poles of the cell; cytokinesis is almost completedchromosomes (chromatids) first become visible as long thin strandsDNA (chromosome) replication occurs
What will be the outcome if anaphase proceeded even thoughthe sister chromatids were not properly attached to theirrespective microtubules and lined up at the metaphaseplate?
Why would the supercoiled, condensed formof chromosomes seen in metaphase not besuitable for the G1 phase of the cell cycle?Why would the finely dispersed chromatinof the G1 phase not be suitable for mitosis?
Which of the following events does not normally occur in mitosis? Separation of sister chromatids from each other Formation of synaptonemal complexes Attachment of spindle fibers to centromeres Movement of sister chromatids to opposite poles Alignment of chromosomes along the metaphase plate
When studying living cells in a laboratory, researchers sometimesuse drugs as a way to cause cells to remain in a particular phaseof the cell cycle. For example, aphidicolin inhibits DNA synthesisin eukaryotic cells and causes them to remain in the G1 phasebecause they cannot replicate their DNA. In what phase of thecell cycle—G1, S, G2, prophase, metaphase, anaphase, or telophase—would you expect somatic cells to stay if the followingtypes of drug were added?A. A drug that inhibits microtubule formationB. A drug that allows microtubules to form but prevents themfrom shorteningC. A drug that inhibits cytokinesisD. A drug that prevents chromosomal condensation
Which phase is described below? The chromosomes condense, Each is made of two sister chromatids,(looks) like an "X" Each sister is a clone, the closest of kin, And acentromere connects them like siamese twinsThe nucleolus disappears it melts away, as the cell takes a ribosomeproduction holiday, the centrosomes separate, start spindle formationfor separating chromatids and cell elongation.
v Part A Match the description with the stage of the cell cycle. Reset Help Centrioles move to opposite ends of the cell DNA condenses to form chromosomes Chromosomes line up in the middle of the cell Chromosomes Split and Move to opposite ends of the cell Cell begins to split into two DNA replicates Interphase Prophase Metaphase Anaphase Telophase UnitConversionSE.pdf Type here to search 99+ RB (1
Taxol is an anticancer drug extracted from the Pacific yew tree. In animal cells, Taxol disrupts microtubule formation. Surprisingly, this stops mitosis. Specifically, Taxol must affect formation of the centrioles the structure of the mitotic spindle chromatid assembly anaphase O00O
The figure below represents the relative amount of nuclear DNA during different segments of mitotic cell division. amount of DNA in nucleus cycle I Amount of nuclear DNA in an actively dividing coll AI 3 According to the figure above, which of the numbered regions represents a period during which cells will be In the anaphase? = = C III D IV IV cycle II
During cell division, one of the daughter cells ended up with one more chromosome than the other daughter cell. A complication in what phase could have initiated this predicament? O prophase O anaphase O metaphase S Phase
Which of the following is NOT a checkpoint that controls the progression of cell cycle? The metaphase checkpoint determines if all chromosomes are attached to the spindle apparatus Cytokinesis involves the formation of cleavage furrow to separate the cells The G2 checkpoint checks for DNA damage and determines if all of the DNA is replicated Cyclins and cyclin dependent kinases are protejns that are responsible for advancing a cell through the phases of the cell cycle