Biology, 03.07.2019 22:00, roadking490

After completing the online activity, what percent of the time did you find that the cell spends in prophase (number of cells in prophase divided by the total # of cells (36) multiplied by 100)? question 4 options: 56% 28% 8% 6%

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Biology, 07.07.2019 12:30, shakaylaousley1997

Which of the following statements best describes the major difference between prophase i of meiosis and prophase of mitosis? in prophase i, tetrads of homologous chromosomes form and crossing over occurs. in prophase, the nuclear membrane dissolves and spindle fibers attach to the chromosomes. in prophase i, the chromatin condenses to form visible chromosomes. in prophase, the replicated chromosomes are linked together as sister chromatids.

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Biology, 16.07.2019 16:30, chrjergre6520

1. when during the cell cycle is a cell's dna replicated? a. g1 phase b. g2 phase c. s phase d. m phase 2. which of the following represents the phases of mitosis in their proper sequence? a. prophase, metaphase, anaphase, telophase b. interphase, prophase, metaphase, anaphase, telophase c. interphase, prophase, metaphase, telophase d. prophase, anaphase, metaphase, telophase 3. what is the role of the spindle fibers during mitosis? a. they separate the chromosomes b. they break down the nuclear membrane c. they duplicate the dna d. they make the chromosomes visible 4. one difference between cell division in plant cells and in animal cells is that plant cells have a. centrioles b. centrometers c. a cell plate d. chromatin

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Biology, 29.07.2019 19:00, memeitupkevin

Which of the following correctly explains the steps pictured below? an image depicting three stages of meiosis. the first shows two cells with chromosomes still paired as sister chromatids and spindle fibers beginning to form. the second pair of cells shows sister chromatid pairs lined up in the middle of the cell with spindle fibers attached to the centromeres of each pair. the third pair of cells shows the centromeres separating and individual chromosomes moving along the spindle fibers to opposite ends of the cell. prophase ii, metaphase ii, anaphase ii prophase ii, anaphase ii, telophase ii prophase i, prophase ii, metaphase i prophase i, metaphase i, anaphase i

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Biology, 18.10.2019 21:00, vince022503

Data: number of cells in part 1 number of cells in part 2 interphase 34 49 prophase 7 13 metaphase 3 4 anaphase 2 3 telophase 2 4 cytokinesis 1 3 observations: record any observations about the cells you observed. what does the cell look like for each stage? what is a distinguishing visible feature of each stage of the cell cycle? description of cell interphase the cell is alone somewhere usally in the middle. prophase the cell is alone but with marks on it. metaphase the cell only has marks in the middle. anaphase the cell has marks on only the top and bottom of itself. telophase there’s two parts with marks. cytokinesis there are two parts that are divided with a line they also have marks. data analysis: part 1: calculate the percentage of the cell cycle spent in each stage. number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage the precentage of the cell cycle spent in each stage part 2: using your percentages in part 1 create a chart that represents the time spent in each stage of the cell cycle. insert chart [hint: don’t forget to consider the relationship between your data and the type of chart to best represent your data] conclusion: be sure to answer the following reflection questions as a summary in the conclusion of your lab report: was your hypothesis correct? why or why not? based on your data, what can you infer about the length of time spent in each stage of the cell cycle? what stages were the longest and shortest? give a brief explanation of why these stages may have that time period. questions: using what you have learned in the lesson and the virtual lab activity, answer the following questions in complete sentences. what differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell? if your observation had not been restricted to the tip of the onion root, how would the results be different?

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