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13 Cards in this Set
- Front
- Back
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Activator |
Transcription factor that increases the rate of transcription |
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Enhancer |
In eukaryotic cells , a binding site in DNA for an activator |
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Operator |
In prokaryotes, a binding site in DNA for a repressor |
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Repressor |
Transcription factor that reduces the rate of transcription |
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Transcription factor |
Protein that influences transcription by binding directly to DNA; for example , an activator or repressor |
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Homeotic gene |
Type of master gene; its expression controls formation of specific body parts during development |
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Knockout |
An experiment in which a gene is deliberately Inactivated in a living organism; also, an organism that carries a knocked out gene |
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Master gene |
Gene encoding a product that affects the expression of many other genes |
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Barr body |
Inactivated x chromosome in a cell of a female mammal. The other X chromosome is active. |
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Dosage compensation |
Mechanism in which XD chromosome inactivation equalizes gene expression between males and females |
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X chromosome inactivation |
Development shutdown of one of the two X's chromosomes in the cells of female mammals. |
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Operon |
Group of genes together with a promoter - operator DNA sequence that controls their transcription |
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Epigenetic |
Refers to heritable changes in gene expression that are not the result of changes in DNA sequence |
