gene regulation Flashcards

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1
Q

Activator protein

A

A protein coded for by a regulatory gene that increases gene expression.

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2
Q

Conformational change

A

A change in the three-dimensional shape of macromolecules such as proteins.

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3
Q

Gene regulation

A

Any mechanism that acts to increase or decrease the production of specific gene products (DNA or RNA) in the cell.

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4
Q

Operator

A

A short region of DNA that interacts with repressor proteins to alter the transcription of an operon.

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5
Q

Operon

A

A cluster of linked genes that all share a common promoter and operator and are transcribed at the same time.

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6
Q

Regulatory gene

A

A segment of DNA responsible for producing proteins that control the expression of other genes.

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7
Q

Repressor protein

A

A protein coded for by a regulatory gene that prevents gene expression by binding to its operator.

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8
Q

Structural gene

A

A segment of DNA that doesn’t code for regulatory proteins, but instead codes for proteins that play a role in the structure or function of a cell or organism.

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9
Q

Tertiary structure - proteins

A

A laboratory apparatus which alters the temperature in pre-programmed steps for temperature-sensitive reactions like PCR.

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