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23 Cards in this Set
- Front
- Back
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Genetics
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The study of the inheritance of living things
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Genetics
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Transmission of traits from parent to offspring
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Genetics
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Expression and variation of those traits
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Genetics
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The structure and function of the genetic material
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Genetics
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How this material changes
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Genome
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Sum total of cell’s genetic material
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Genome
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Mostly in chromosomes, not always
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Required elements of genome
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Self-replicate
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Required elements of genome
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Accurately duplicated and separated from each daughter cell
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Eukaryotic chromosomes
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DNA + histone proteins
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Eukaryotic chromosomes
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Vary in number
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Eukaryotic chromosomes
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Diploid or haploid
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Eukaryotic chromosomes
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Linear
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Bacterial chromosomes
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DNA + histone-like proteins
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Bacterial chromosomes
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Single, circular chromosome
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Gene
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A segment of DNA encodes a protein or RNA molecule
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Types of Genes
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Structural genes
RNA Regulatory genes |
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Genotype vs Phenotype
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More genes manifested in genotype than phenotype
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The Size and Packaging of Genomes
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The stretched-out DNA can be 1,000 times or more longer than the cell
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The Size and Packaging of Genomes
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Vary greatly in size
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Sizes of genomes
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Smallest viruses- 4 or 5 genes
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Sizes of genomes
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Escherichia coli- 4,288 genes
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Sizes of genomes
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Human cell- 20,000 to 25,000 genes
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