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TLS Online TPP Program

#Question id: 4258

A single base substitution mutation is likely to have a less deleterious effect when the base change exhibits which of the following results?

#Unit 3. Fundamental Processes

  1. a stop codon

  2. a codon that specifies the same amino acid as the original codon

  3. an amino acid substitution that alters the tertiary structure of the protein

  4. an amino acid substitution at the active site of an enzyme

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TLS Online TPP Program

#Question id: 12598

#Unit 10. Ecological Principles

In the development of terrestrial biomes, which factor is most dependent on all the others?
TLS Online TPP Program

#Question id: 12599

#Unit 10. Ecological Principles

What is the most important role of photosynthetic organisms in an ecosystem? 
TLS Online TPP Program

#Question id: 12600

#Unit 10. Ecological Principles

Ecosystems are
TLS Online TPP Program

#Question id: 12601

#Unit 10. Ecological Principles

The total biomass of photosynthetic autotrophs present in an ecosystem is known as
TLS Online TPP Program

#Question id: 12602

#Unit 10. Ecological Principles

Aquatic primary productivity is most limited by which of the following?
TLS Online TPP Program

#Question id: 12603

#Unit 10. Ecological Principles

As big as it is, the ocean is nutrient-limited. If you wanted to investigate this, one reasonable avenue would be to