What is gene expression?
1.08 Test Study Guide: Gene Expression

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Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Gene expression is the process by which information from a gene is used to synthesize a functional gene product, usually proteins.
2.
FLASHCARD QUESTION
Front
What is the role of proteins in gene expression?
Back
Proteins are the end products of gene expression and perform various functions in the cell, including structural roles, catalyzing biochemical reactions, and regulating cellular processes.
3.
FLASHCARD QUESTION
Front
What does it mean when we say all cells have the same genes?
Back
It means that every cell in an organism contains the same DNA sequence, but different genes can be activated or expressed in different cell types.
4.
FLASHCARD QUESTION
Front
What is the lac operon?
Back
The lac operon is a set of genes in bacteria that are involved in the metabolism of lactose and is regulated by the presence or absence of lactose.
5.
FLASHCARD QUESTION
Front
What is a repressor protein?
Back
A repressor protein is a type of regulatory protein that binds to specific DNA sequences and inhibits the transcription of certain genes.
6.
FLASHCARD QUESTION
Front
How does lactose affect the lac operon?
Back
Lactose binds to the repressor protein, causing it to change shape and release from the DNA, allowing gene transcription to occur.
7.
FLASHCARD QUESTION
Front
What is differentiation in the context of gene expression?
Back
Differentiation is the process by which cells become specialized in structure and function, often through the selective expression of certain genes.
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