Communities and Ecosystems JEOPARDY!! ?

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Communities and EcosystemsJEOPARDY!! ?
Discovery of DNA DNA structure and replication DNA Replication and the Cell Cycle Mitosis Meiosis
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Which scientist discovered the presence of a
transforming factor while working with mice and
pneumonia-causing bacteria?
10 Discovery of DNA
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Griffith
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Discovery of DNA
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Using the conclusions of Griffiths experiment,
which scientists discovered DNA to be the
hereditary material?
20 Discovery of DNA
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Hershey and Chase
20 Discovery of DNA
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Using models and the research of various other
scientists, what were Watson and Crick able to
discover?
30 Discovery of DNA
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The structure of DNA, and thus were able to
hypothesize DNA replication
30 Discovery of DNA
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30 Community 1
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What two macromolecules were suggested to be the
transforming factor, and how were they
distinguished from one another in Hershey and
Chases experiment?
40 Discovery of DNA
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DNA- phosphorusProtein-Sulfur
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What were the results of Griffiths experiment?
50 Discovery of DNA
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Heat-killed pathogenic (harmful) bacteria mixed
with living non-pathogenic (harmless) bacteria
caused the formation of living pathogenic
(harmful) bacteria.
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Discovery of DNA
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The monomers of the nucleic acids are called
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DNA structure and replication
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Nucleotides
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DNA structure and replication
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Identify two differences between DNA and RNA.
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DNA structure and replication
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DNA thymine, deoxribose, double stranded,
longerRNA- uracil, ribose, single stranded,
shorter
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DNA structure and replication
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Two polynucleotide strands are held together by
1._______ bonds, and the backbone of each strand
is held together by a 2._______.
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DNA structure and replication
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1. hydogen2. covalent
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DNA structure and replication
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DNA Polymerase cannot start a new polynucleotide
chain, but can only extend one. What is required
to mark the start? be specific
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DNA structure and replication
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an RNA primer laid down by RNA primase.
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DNA structure and replication
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DNA polymerase can only make a new strand in one
section and why?
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DNA structure and replication
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DNA structure and replication
5?3 DNA polymerase can only attach to the 3
OH of the deoxyribose sugar at the end of the
template.
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DNA Replication and the Cell Cycle
Which enzyme unzips the DNA molecule?
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Helicase
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DNA Replication and the Cell Cycle
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Why is DNA replication considered
semi-conservative?
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DNA Replication and the Cell Cycle
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One of the original strands of DNA is retained
(conserved) in the newly constructed strands.
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DNA Replication and the Cell Cycle
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What is the order of the Cell Cycle?
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DNA Replication and the Cell Cycle
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DNA Replication and the Cell Cycle
G1?S?G2?M?Cytokinesis
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Johnny smokes cigarettes. The DNA of Johnnys
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?
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DNA Replication and the Cell Cycle
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DNA Replication and the Cell Cycle
The cells will not recognize one another, will
continue to divide although bumping into each
other, and a tumor can form.
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What are the role of checkpoints in the cell
cycle?
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DNA Replication and the Cell Cycle
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help to ensure phases of the cell cycle are
complete and accurate before moving on to the
next phase.
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DNA Replication and the Cell Cycle
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Mitosis
What are the phases of mitosis?
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Mitosis
Prophase, Metaphase, Anaphase, Telophase
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Mitosis
What kinds of cells are produced through mitosis?
BE SPECIFIC
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Mitosis
Diploid somatic cells (non-sex cells)
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Mitosis
Identify the phase and briefly explain.
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Mitosis
Prophase chromosomes appear, nuclear membrane
disappears, spindle fibers form
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Mitosis
What are the differences between plant and animal
mitosis?
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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
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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?
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Mitosis
15 X shaped chromosomes
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My name is Bond, Ionic BondTaken, not shared!
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Meiosis
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From Mariano Cecowski ltMCecowskiNoSpam.sif.com.
argtQ if both a bear in Yosemite and one in
Alaska fall into the waterwhich one disolves
faster?A The one in Alaska because it is
HIJKLMNO
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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
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Meiosis
What term is used to describe chromosomes that
carry the same genes, just different versions of
those genes?
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Meiosis
Homologous chromosomes
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Population Growth
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Meiosis
When do homologous chromosomes pair up? What
happens as a results?
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Prophase 1- synapsis occurs, a tetrad forms,
enabling crossing over.
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Meiosis
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Meiosis
What is required before meiosis can occur?
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Meiosis
DNA replication in a diploid cell.
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Population Growth
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Meiosis
Identify the phase of meiosis and explain.
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Meiosis
Anaphase 1 homologous chromosomes separate
into individual chromosomes (sister
chromatids) cell is now haploid
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Meiosis

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

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Meiosis

• 19, X
• (two sister chromatids)
• 2. 19,
• (one half of a chromosomes, individual chromatid)