Chapter 10 -1 Flashcards Preview

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Flashcards in Chapter 10 -1 Deck (10):
1

What is an operon?

units that regulate transcription

2

What is the operon system?

promotor, operator, and groups of genes transcribed together

3

What does the operator do?

control sequences that bind regulatory proteins

4

What do regulatory proteins respond to?

environmental changes (food)

5

What are repressors?

negative control over transcription

6

What are inducers?

positive control over transcription

7

What produces enzymes only when lactose is present?

lac operon

8

What does gene control begin with?

embryonic development

9

What is cellular differentiation?

cells become specialized

10

Cells have the same what and difference in what?

same genome
differences in gene expression