5 Genes involved in auxin-regulated growth and development:

1. The AUX/IAA gene family

2. The SAUR gene family

3. The GH3 gene family

Stress response genes:

1. Genes encoding glutathione S-transferases

2. Genes encoding 1-aminocyclopropane-1-carboxylic

acid (ACC) synthase

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#Unit 4. Cell Communication and Cell Signaling

Potent form of benzo(a)pyrene induces inactivating mutations at codons 175, 248, & 273 of the p53 gene

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#Unit 6. System Physiology – Plant

Five pivotal enzymes are regulated by Ferredoxin–thioredoxin Fd-Thrx system

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#Unit 5. Developmental Biology

Neighboring cells respond to cAMP in two ways:

• Initiate a movement toward the cAMP pulse for about a minute
• Release cAMP of their ownNeighboring cells respond to cAMP in two ways:

• Initiate a movement toward the cAMP pulse for about a minute
• Release cAMP of their own

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#Unit 2. Cellular Organization

The trp operon is controlled by repression and attenuation, providing a two-stage response to progressively more stringent tryptophan starvation. But attenuation alone can provide robust regulation: other amino acid operons such as leu and his rely entirely on attenuation for their control. In the case of the leucine operon, its leader peptide has four adjacent leucine codons, and the histidine operon leader peptide has seven histidine codons in a row.

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#Unit 10. Ecological Principles

Abiotic factors determine the fundamental niches of organisms.

The actual range of an organism in nature is termed the realized niche.