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18 Cards in this Set
- Front
- Back
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differentiation
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process by which cells become specialized
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transcription factor
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protein that influences transcription
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activator
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protein that increases the rate of transcription
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enhancer
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binding site in DNA for proteins that enhance transcription rate
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repressor
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protein that blocks transcription
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homeotic gene
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master gene controls formation of specific body parts
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master gene
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gene encoding a product that affects the expression the expression of many other genes
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knockout
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when a gene is deliberately inactivated in a Ling organism
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What is aniridia
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mutation in PAX6 results in missing irises
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pattern formation
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process by which a complete body forms from local processes during embryonic development
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X chromosomes inactivation shuts down _ _ ____ in the cells of of a female mammals, caused by transcription of the ____ gene which keeps the chromosome from transcribing other genes
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1 x chromosome
XIST |
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dosage compensation theory that...
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X chromosomes inactivation equailizes gene expression between males and females
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operon
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group of genes together with a promoter - operator DNA sequence that controls their transcription
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operon occurs in?
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bacteria archaeans and eukaryotes
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operator
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Part of operon a DNA binding site for a repressor
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binging of ____ to ____ in DNA can increase the rate of transcription of specific genes
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activators
enhancers |
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proteins that influences RNA synthesis by binding directly to DNA are called
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transcription factors
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during X Chromosomes inactivation ____
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female cells shut down
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