'Centromere' presentation slideshows

DNA is packaged into chromosomes..

DNA is packaged into chromosomes. Unlike DNA chromosomes can be visualized during cell division (light microscope) The word chromosome is derived from Greek chroma (color) and soma (body). Chromosomes are the factors that distinguish one species from another.

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Tetrad analysis

Tetrad analysis. Fig 5.15. Nonparental = recombinant . Tetrad analysis. What if two crossovers?. Four recombinants Two recombinants No recombinants. Fig 5.15. Parental ? non-recombinant. Fig. 5.17. Centromere is not a mutation. But you can still use it for mapping. Fig. 5.21.

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Reproduction of Cells

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Cell Reproduction

Cell Reproduction Mitosis & Meiosis http://biotech-adventure.okstate.edu/low/basics/mitosis/mitosis-diagram/diagram.gif Cell Cycle http://www.bmb.psu.edu/courses/biotc489/notes/cycle.jpg Mitosis One type of cell division

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Mitosis/Meiosis Jeopardy!

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The cell cycle

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Mitosis

Mitosis. Definition. Mitosis = is the process of the nuclear division in eukaryotes that produces two individual daughter cells. . Mitosis in single-celled organisms: responsible for the production of new individuals- asexual reproduction. Examples: Paramecia and Amoeba .

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Cell Cycle and Mitosis

Cell Cycle and Mitosis. AP Biology Unit 3. Cell Cycle. Cell Cycle = the entire cycle of a cell from one division to the next Interphase (G1, S, G2) = between cell divisions M Phase (Mitosis and Cytokinesis) = cell division. Interphase. Most of the time, a cell is in Interphase G1 (Gap1)

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Cellular Reproduction

Cellular Reproduction. Cell division - A process in which a cell divides into 2 or more cells. Functions of cell division: *reproduction *growth and development *repair. Cellular Reproduction. In asexual reproduction :

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The Cell Cycle

The Cell Cycle. Making new cells for growth and replacing old dying cells. Interphase. 95% of the cell cycle G1 -Cell grows to mature size S -DNA replicates G2 -Prepares for Cell division DNA is not in chromosomes yet. Interphase. Draw a picture of this phase. Mitosis: prophase.

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Announcements

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Chromosomal Karyotypes

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Evidence of Evolution by Natural Selection

Evidence of Evolution by Natural Selection. Testable Hypotheses. Peppered Moths. Dark vs. light variants. Year % dark % light 1848 5 95 1895 98 2 1995 19 81. Peppered moth. What was the selection factor? early 1800s = pre-industrial England low pollution

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Evidence of Evolution by Natural Selection

Evidence of Evolution by Natural Selection. Testable Hypotheses. Peppered Moths. Dark vs. light variants. Year % dark % light 1848 5 95 1895 98 2 1995 19 81. Peppered moth. What was the selection factor? early 1800s = pre-industrial England low pollution

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Cell Cycle and Mitosis Formative

Cell Cycle and Mitosis Formative. November 30, 2011. Which of the following images depicts a cell in anaphase?. 1 2 3 4 5. 2 . 1 . 3. 4 . 5 . In which phase of the cell cycle does the cell double in size?. Mitosis G 1 S G 2 I need help with this. .

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Karyotype Analysis

Karyotype Analysis. Chromosome staining & structure Chromosomal abnormalities in humans. A. Chromosome Staining & Structure. Metaphase chromosome spread Staining techniques G-banding R-banding Q-banding. A. Chromosome Staining & Structure. Centromere Position Metacentric

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