DNA Review

The nitrogen bases found in DNA are represented by the letters

• T, U, G, A, and C
• T,A, P and C
• A, U, G, and C
• A, T, G, and C

which scientists developed the molecular structure of DNA?

• Watson and Crick
• Mendel and Darwin
• Lamarck and Weisman
• Miller and Fox

Genes are the basic unit of heredity. Genetic information is encoded in a linear sequence of

• nucleic acids.
• amino acids.
• carbohydrates.
• fatty acids.

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A student using a compound microscope was able to observe some chromosomes in a cell. These threadlike structures are composed primarily of-

• glucose
• nucleic acids
• lipids
• fatty acids

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The cells in the pictures are found in the same animal. Which of the following best explains why the cells look so different?

• Some of the cells are diseased and damaged.
• Some of the cells are young and still growing.
• The cells have different functions.
• The cells have different DNA.

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The diagram represents a molecule of 

• DNA
• ATP
• FSH
• RNA

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Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

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What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

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What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Which shows the correct complementary base pairing for DNA?

• C-A, T-G
• A-G, C-T
• C-G, U-A
• T-A, G-C