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Communities and Ecosystems JEOPARDY!! Discovery of DNADNA structure and replication DNA Replication and the Cell Cycle MitosisMeiosis 10 20 30 40 50.

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Presentation on theme: "Communities and Ecosystems JEOPARDY!! Discovery of DNADNA structure and replication DNA Replication and the Cell Cycle MitosisMeiosis 10 20 30 40 50."— Presentation transcript:

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2 Communities and Ecosystems JEOPARDY!! Discovery of DNADNA structure and replication DNA Replication and the Cell Cycle MitosisMeiosis 10 20 30 40 50

3 10 10 Discovery of DNA Which scientist discovered the presence of a transforming factor while working with mice and pneumonia-causing bacteria?

4 10 Griffith Discovery of DNA

5 20 20 Discovery of DNA Using the conclusions of Griffith’s experiment, which scientists discovered DNA to be the hereditary material?

6 20 20 Discovery of DNA Hershey and Chase

7 30 30 Discovery of DNA Using models and the research of various other scientists, what were Watson and Crick able to discover?

8 30 30 Discovery of DNA The structure of DNA, and thus were able to hypothesize DNA replication

9 30 Community 1

10 40 40 Discovery of DNA What two macromolecules were suggested to be the transforming factor, and how were they distinguished from one another in Hershey and Chases experiment?

11 40 40 Discovery of DNA *DNA- phosphorus *Protein-Sulfur

12 50 50 Discovery of DNA What were the results of Griffith’s experiment?

13 50 Heat-killed pathogenic (harmful) bacteria mixed with living non- pathogenic (harmless) bacteria caused the formation of living pathogenic (harmful) bacteria. Discovery of DNA

14 10 The monomers of the nucleic acids are called… DNA structure and replication

15 Nucleotides 10 DNA structure and replication

16 20 Identify two differences between DNA and RNA. DNA structure and replication

17 *DNA –thymine, deoxribose, double stranded, longer *RNA- uracil, ribose, single stranded, shorter 20 DNA structure and replication

18 30 Two polynucleotide strands are held together by 1._______ bonds, and the backbone of each strand is held together by a 2._______. DNA structure and replication

19 1. hydogen 2. covalent 30 DNA structure and replication

20 40 DNA Polymerase cannot start a new polynucleotide chain, but can only extend one. What is required to mark the start? *be specific* DNA structure and replication

21 *an RNA primer laid down by RNA primase *an RNA primer laid down by RNA primase. 40 DNA structure and replication

22 50 DNA polymerase can only make a new strand in one section and why? DNA structure and replication

23 50 5’  3’; DNA polymerase can only attach to the 3’ –OH of the deoxyribose sugar at the end of the template. DNA structure and replication

24 10 DNA Replication and the Cell Cycle Which enzyme unzips the DNA molecule?

25 Helicase 10 DNA Replication and the Cell Cycle

26 20 Why is DNA replication considered semi-conservative? DNA Replication and the Cell Cycle

27 One of the original strands of DNA is retained (“conserved”) in the newly constructed strands. 20 DNA Replication and the Cell Cycle

28 30 What is the order of the Cell Cycle? DNA Replication and the Cell Cycle

29 30 G1  S  G2  M  Cytokinesis

30 40 Johnny smokes cigarettes. The DNA of Johnny’s body has become mutated due to exposure to nicotine. He no longer contains the correct gene instructions to make certain surface proteins on his cells. What could happen as a result? DNA Replication and the Cell Cycle

31 40 The cells will not recognize one another, will continue to divide although bumping into each other, and a tumor can form.

32 50 * * What are the role of checkpoints in the cell cycle? DNA Replication and the Cell Cycle

33 50 *help to ensure phases of the cell cycle are complete and accurate before moving on to the next phase.

34 10 Mitosis What are the phases of mitosis?

35 10 Mitosis Prophase, Metaphase, Anaphase, Telophase

36 20 What kinds of cells are produced through mitosis? BE SPECIFIC Mitosis

37 20 Diploid somatic cells (non-sex cells)

38 30 Mitosis Identify the phase and briefly explain.

39 30 Mitosis Prophase; chromosomes appear, nuclear membrane disappears, spindle fibers form

40 40 Mitosis What are the differences between plant and animal mitosis?

41 40 Mitosis *no centrioles are used in a plant cell during mitosis (spindle fibers form spontaneously) *plant forms a cell plate, instead of a cleavage furrow, during telophase leading into cytokinesis

42 50 Mitosis A fungus has a diploid number of 30. Fungal haploid cells have the ability to continue through the cell cycle and perform mitosis (undergo all stages of the cell cycle including Interphase). If this haploid cell went through mitosis, hat would the number of chromosomes be during prophase? What would the chromosomes look like?

43 50 Mitosis 15; X shaped chromosomes

44 10 My name is Bond, Ionic Bond; Taken, not shared! Meiosis

45 10 Population Growth From: Mariano Cecowski Q: if both a bear in Yosemite and one in Alaska fall into the water which one disolves faster? A: The one in Alaska because it is HIJKLMNO

46 10 Population Growth Alimentary: What Sherlock Holmes said to Dr. Watson. Urinate: What a nurse would say if a patient asked her what room he's in. Urine - The opposite of "You're out!" Benign: What we want when we are eight. Intestine - Currently taking an exam CARDIOLOGY: advanced study of poker playing TERMINAL ILLNESS: getting sick at the airport

47 10 Meiosis What term is used to describe chromosomes that carry the same genes, just different versions of those genes?

48 10 Meiosis Homologous chromosomes

49 10 Population Growth

50 20 Meiosis When do homologous chromosomes pair up? What happens as a results?

51 Prophase 1- synapsis occurs, a tetrad forms, enabling crossing over. 20 Meiosis

52 30 Meiosis What is required before meiosis can occur?

53 30 Meiosis *DNA replication in a diploid cell.

54 30 Population Growth

55 40 Meiosis Identify the phase of meiosis and explain.

56 40 Meiosis Anaphase 1; *homologous chromosomes separate into individual chromosomes (sister chromatids) *cell is now haploid

57 50 Meiosis A cat has a diploid number of 38. 1.What would the number of chromosomes be in a cell in telophase 1 of meiosis in this cat? What would it look like? 2.What would the number of chromatids be in a cell in telophase 2 of meiosis in this cat? What would it look like?

58 50 Meiosis 1.19, X (two sister chromatids) 2. 19, | (one half of a chromosomes, individual chromatid)


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