Chinese+Chicka+Chenga

flat Ariel Sarah

=Cheek Cell Lab= This is a picture of the DNA of our cheek cells.
 * 1) What are the 5 elements that make up DNA? **Carbon, Hydrogen, oxygen, nitrogen and phosphorus.**
 * 2) What is the function of DNA from day to day? **It tells the cells what to do.**
 * 3) Describe how long strands of double-helical DNA fit into the nucleus of a single cheek cell. **They are smashed and compacted. It is coiled and very tightly packed into the nucleus.**
 * 4) What was the purpose of using the cell lysis solution? **It breaks down the cell so that it releases DNA.**
 * 5) Why does the DNA become visible once the alcohol is added? **The DNA precipitates out of the solution.**
 * 6) Why is DNA referred to as your genetic fingerprint? **Everyone has a unique fingerprint; not everyone person has the same.**
 * 7) Give some examples of how DNA is used everyday. **It’s used in forensic science to show who the person is. It’s used on crime shows. It is used to detect different diseases.**
 * 1) Give some examples of how DNA is used everyday. **It’s used in forensic science to show who the person is. It’s used on crime shows. It is used to detect different diseases.**

= DNA Replication =



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Summary In transcription, there are 5 steps. The first step is RNA polymerase binds to DNA and unwinds it. The second step is RNA Polymerase binds to the promoter region of the RNA. Next, the RNA polymerase reads DNA and creates mRNA. Then, the RNA polymerase hits the stop codon and releases mRNA. Lastly, the mRNA leaves the nucleus and enters the cytoplasm. In translation, there are also 5 steps. The first is that rRNA forms ribosomes. Secondly, the mRNA binds to the ribosome and reads it. Third, tRNA proof reads mRNA and transfers amino acids. The amino acids then attach to tRNA and bind with the peptide bonds. Then the ribosome hits stop codon and completes the protein. This is how DNA goes to RNA and then goes to proteins.

=Genetics Vocabulary=









=Medaka Infographic=



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=Diaper Dissection Lab= Diapers, Diapers, Diapers

The procedure that we did involved cutting out a 3x3 in. square of the diaper and separated the layers. There were 3 layers. Next we added water to each individual layer. The top layer of the diaper held 2mL of water. It is responsible for holding the diaper together while being comfortable while in use. The second layer holds about 30mL of water. It is responsible for absorbing and retaining fluids. It is composed of little beads then when are wet, expand and become much larger holding in the liquid. The third and outer layer holds about 14mL. The water doesn’t leak through this layer because the purpose is to prevent leakage. The water just ran off when it couldn’t hold anymore. The total diaper held 555mL before leaking.

The downfalls of diapers in landfills are that they take about 500 years to decompose and they also require oxygen and sunlight to disintegrate. Another issue is that rainfall can carry baby’s waste into the ground and contaminate water supplies. While diapers decompose they release methane into the air which in high concentrations can be explosive or flammable.