Term
| includes things like light turning on chlorophyll production |
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Definition
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| includes hormones turning on genes |
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Definition
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Term
| There is a long wait time for proteins to be coded in prokaryotes. TRUE OR FALSE? |
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Definition
| FALSE; it happens right after it is transcribed |
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Term
| the creators of a model that explains how genes are controlled in prokaryotes |
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Definition
| Francois Jacob and Jacques Monod |
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Term
| genes on a chromosome in prokaryotes are in arranged in groups called... |
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Definition
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Term
| a group of genes related to a function |
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Definition
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Term
| the genes that code for proteins |
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Definition
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Term
| the genes that promote the movement of RNA polymerase onto the structural genes which allows transcription to occur |
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Definition
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Term
| a gene that acts as an on and off switch for the operon |
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Definition
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Term
| Where is the operator positioned? why? |
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Definition
| it is positioned between the promoter and structural gene; so it can control the movement of RNA polymerase from the promoter to the structural genes |
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Term
| continuously makes what is called a repressor protein; not part of the operon |
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Definition
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Term
| What do repressor proteins bind to? why? |
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Definition
| operators; to prevent RNA polymerase from going any further down the DNA |
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Term
| Since RNA polymerase cannot go any further down the DNA bc of the binding of the repressor protein and the operator, what does not occur? is the operator on or off? |
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Definition
| the transcription of structural genes so the operator is OFF |
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Term
| What causes the the repressor protein to fall off the DNA? When this happens, is the operator turned on or off? |
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Definition
| the high levels of substance they are specific for which causes them to bind to the repressor protein making it fall off the operator; ON |
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Term
| When is the attachment of methyl groups seen? |
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Definition
| it is seen on tightly coiled chromatin and appears to interfere with transcription of DNA to make RNA |
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Term
| enzyme made from a piece of RNA |
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Definition
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Term
| sequences of bases within genes that are not part of the code for a protein |
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Definition
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Term
| sequences of bases within a gene that does code for a protein |
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Definition
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Term
| the process of removing the introns in the nuclues is called.... |
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Definition
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Term
| Gene splicing does not occur in prokaryotic cells. TRUE OF FALSE? |
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Definition
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Term
| a change in a sequence of nucleotides within a gene is called a.... |
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Definition
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Term
| a pair of nucleotide bases is replaced by a different pair; and if only one is replaced it is a..... |
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Definition
| base-pair substitution; point mutation |
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Term
| addition or deletion of one or more bases from a gene |
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Definition
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Term
| substances known to cause cancer or mutations |
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Definition
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Term
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Definition
| asbestos, cigarette material, smoke, UV and X Ray radiation, viruses |
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Term
| test to determine if a substance may be a carcinogen |
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Definition
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