Biology Chapter 10 Gene Expression Vocab
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each of the black spaces below before clicking
on it to display the answer.
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| Homeotic Gene | A type of master gene that controls the formation of specific body parts.
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| Enhancers | A binding site in DNA for an activator, all inside of eukaryotic cells.
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| Repressors | A factor that reduces the rate of transcription.
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| Operators | A binding site in DNA for repressors, all inside of prokaryotic cells.
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| Dosage Compensation | A mechanism in which X chromosome inactivation equalizes gene expression between males and females.
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| Activators | A factor that increases the rate of transcription.
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| X Chromosome Inactivation | A developmental shutdown of one X chromosome in a female mammal's cells.
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| Operon | Group of genes that have a promoter-operator DNA sequence that controls their transcription.
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| Barr Bodies | Inactivated X chromosome in a female mammal. The other X chromosome is active.
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| Epigenetic | Heritable changes in gene expression that are not a result of the changes in DNA sequence.
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| Master Genes | A gene encoding a product that changes the expression of other genes.
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| Transcription Factors | A protein that influences transcription. e.g. Activator, Repressor, etc.
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| Knockout | An experiment in which a gene is deliberately inactivated in a living organism.
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