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Untitled Prezi

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Rebecca Triplett

on 15 October 2014

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Transcript of Untitled Prezi

Jennifer Fowler
Rebecca Triplett
Jalin Montgomery
Tiffany Hedspeth

Explain the double stranded, complementary nature of DNA as it relates to its function in the cell.
Structure of DNA, sequence of nucleotides codes for proteins/traits.
DNA is a double helix, with about 10 nucleotide pairs.
Each strand is composed of a sugar phosphate backbone and attached bases.
Each pair has a complementary pair.
Adenine and Thymine are connected by two non-covalent hydrogen bonds.
Guanine and Cytosine are connected by three.
Protein synthesis/gene expression
The process in which cells build proteins.
It uses DNA, RNA, and various enzymes.
This includes Amino acid synthesis, Transcription, and Translation.
Gene expression is the convertion of the information from the gene into mRNA or transcription and then to protein or translation resulting in the phenotypic manifestation of the gene.
DNA is double stranded which means that it is a double helix.
Nucleotides are linked into chains with phosphate and sugar groups alternating.
One side of the nitrogen base has to be the opposite of the other side which makes complementary bases.
DNA's function in the cell in that it binds to proteins and they make chromosomes.
How cells produce different types and amounts of proteins in response of environments.
Depending on the cell environment that determines on what and how to produce proteins.
Things like PH and temperature change the environment of a cell.
Infer the advantages and disadvantages of the overproduction, underproduction, or production of proteins at the incorrect time.
Advantages {injury healing} and disadvantages {cancer} of the overproduction, underproduction, or production of proteins at incorrect times.
Step number one of protein synthesis
Occurs in the nucleus
It is the process of making mRNA from the DNA template
During transcription, the DNA molecule unzips and RNA nucleotides in the nucleoplasm bond to the complementary bases on one of the two DNA templates.
The mRNA leaves the nucleus and travels through the cytoplasm into the ribosomes.
Step number two of protein synthesis
Occurs in the cytoplasm and the ribosomes
It is the process of using the code from the RNA to string together the appropriate amino acids to form your protein.
The mRNA binds to the ribosome.
tRNA reads which amino acid is needed, the tRNA goes and picks up that amino acid and brings it back to the ribosome.
When the amino acids are strung together you have a protein.
Codon chart
Amino acid:Leusine Proline Tyrosine Phenylalanine Glutamine
Full transcript