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Transcript
DNA REVIEW The connecting pieces or “rungs” on a DNA ladder. NITROGEN BASES Structure in the cell where chromosomes are located. NUCLEUS The copying of a DNA molecule. REPLICATION The other substance in addition to phosphates that make up the “handrails” of the DNA ladder. SUGAR A section of DNA controlling the making of specific proteins. GENE Scientist who used X-ray diffraction to determine that DNA was a helix. ROSALIND FRANKLIN Heredity structures made up of DNA and protein. CHROMOSOMES Substances that determine our physical appearance. PROTEINS Scientist who worked with James Watson in developing the doublehelix model of DNA. FRANCIS CRICK The structure of a DNA molecule. DOUBLE HELIX An organism’s informational code. DNA Nitrogen base always paired with adenine. THYMINE Nitrogen base always paired with guanine. CYTOSINE An abnormality or deformation of an organism due to pollutants in the environment that affect the organism’s DNA. MUTATION Repeating units of a sugar, phosphate, and a nitrogen base that create the DNA helix. NUCLEOTIDE A chemical used to read the DNA in the nucleus which takes the message to the ribosomes where proteins are made. mRNA Base that replaces thymine in messenger RNA (mRNA). URACIL Besides viewing this slide show again . . . And again . . . And again, what else can you do to prepare for the quiz? • Look over the handouts in your notebook focusing on the BOLD FACED words. • Review the “What is DNA?” slide show on my teacher webpage. DNA YOUR MAP OF LIFE!!