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11 Cards in this Set
- Front
- Back
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What are the smallest segments of DNA that represent information
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gene
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Which scientists are credited with the discovery of the DNA double helix?
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Crick and Watson
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What are 3 ways that a DNA molecule has been described?
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spiral staircase, twisted ladder, double helix
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When DNA replicates itself, adenine always attaches to what base?
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thymine
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Cytosine, thymine, guanine, and adenine are made of what kind of bases?
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nitrogen
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A display of the pairs of chromosomes is known as what?
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karyotype
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How many chromosomes are in the nucleus of a human cell (other than the egg or sperm)?
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46
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Who made the first X-ray of a DNA molecule in 1952?
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Rosalind Franklin
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What does DNA stand for?
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deoxyribonucleic acid
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In every human being what percent of the genes are the same?
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99%
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To determine the sex of the human offspring, you need to look at what pair of chromosomes on a karyotype?
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23rd pair
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