DNA REVIEW. The connecting pieces or “rungs” on a DNA ladder. NITROGEN BASES.

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Presentation 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 double- helix 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!!