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20 Cards in this Set
- Front
- Back
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What are the 3 postulates of Darwin's theory? |
- Competition - Variation - Inheritance |
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Blending inheritance |
The observation that organisms were a "blend" of their parents |
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What is the problem with the theory of blending inheritance? |
Eventually eliminates variation! |
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Mendelian traits are: |
discontinuous |
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Multi-locus traits are: |
continuous |
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Smallest unit capable of reproduction |
The cell |
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A cell stores |
Genetic material |
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Eukaryotic cells |
Inside the nucleus, store genetic information |
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Adult human has how many cells? |
1,000 billion |
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Chromosomes contain: |
coiled DNA |
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Chromosome undergo _____________ during cell division |
Replication |
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Homologous pairs exist in ________________ organisms. |
Diploid |
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Humans have _____ chromosome pairs |
23 |
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Humans have 46 chromosomes in each _____________ cell in the body. |
Somatic |
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Cell division that results in an identical daughter cell |
mitosis |
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Cell division that results in two haploid offspring sex cells |
meiosis |
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Chromosomes contain |
proteins and nucleic acids |
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DNA likely carries |
hereditary information |
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Who is credited with the discovery of the structure of DNA? |
Francis Crick and James Watson in 1953 |
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Unit of heredity |
Gene |
