BIOB11H3 Lecture Notes - Lecture 15: Autoradiograph, Leland H. Hartwell, Heterokaryon

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ultramarinegiraffe486

24 Oct 2017

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Document Summary

Interphase: the portion of the cell cycle between periods of cell division. Cytokinesis: the part of the cell cycle during which physical division of the cell into two daughter cells occurs. Cyclin-dependent kinase: (cdks) enzymes that control progression of cells through the cycle. Prophase: the first stage of mitosis during which the duplicated chromosomes are prepared for segregation and the mitotic machinery is assembled. Anaphase: the stage of mitosis during which sister chromatids separate from one another. Early in development, cell cycle time is short (a few hours), but later in development, takes longer. ) Interphase represents all of the stages between successive mitosis. Mitosis is super short btw. (small piece on pie chart). End product is two genetically identical daughter cells. In g1, they gotta begin conducting normal cell metabolism, cell growth, organelles duplicate now. Mitochondira, er ets. now its got larger, and it gets a signal that ok cmon lets start the duplication!!!

Related Questions

31.????? interphase A. cytoplasm divided between the two daughter cells

32.????? chromosomenumber B. final phase of mitosis; daughter nuclei form

33.????? chromatid C. sum total of chromosomes in all cells of a given

type

34.????? cytokinesis D. chromosomes condense and mitotic spindle

begins to form

35.????? metaphase E. chromosomes line up at spindle equator

36.????? alleles F. sister chromatids separate, move to opposite

spindle poles now

37.????? prophase G. none between meiosis I and II

38.????? telophase H. half of a chromosome in prophase

39. ????? anaphase I. different molecular forms of the same gene

Matching

ultramarineporpoise990

Lab 11 Mitosis

Interphase - Chromosomes are not visible because they areuncoiled

Prophase- The chromosomes coil. The nuclear membranedisintegrates. Spindle fibers (microtubles) form. The drawing showsa cell with 8 chromosomes. Each chromosome has 2 chromatids for atotal of 16 chromatids.

Prometaphase

Metaphase - The chromosomes become aligned. The drawing shows acell with 8 chromosomes. Each chromosome has 2 chromatids for atotal of 16 chromatids.

Anaphase- The chromatids separate; the number of chromosomesdoubles. The drawing shows a cell with 16 chromosomes. Eachchromosome has 1 chromatid for a total of 16chromatids

Telophase- The cell divides into two. The chromosomes uncoil.The nucleus reforms. The spindle apparataus disassembles. Thedrawing shows a cell with 16 chromosomes. Each chromosome has 1chromatid for a total of 16 chromatids.

Ques(ons

1. What stage were most of the onion root p cells in? Does thismake sense?

2. As a cell grows, what happens to its surface area : volumerao? (Think of a balloon being blown up). How is this changing raonrelated to cell division?

3. What is the function of mitosis in a cell that is about todivide?

4. How accurate were your met predictions for each stage of thecell cycle?

5. Discuss one observation that you found interesting whilelooking at the onion root p cells.

6. What would happen if mitosis were uncontrolled?

for escience lab 11 bio 113

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