TLS Online TPP Program

#Question id: 546


Enzymes are potent catalysts because they:

#XL - R Botany
  1. are consumed in the reactions they catalyze.

  2. are very specific and can prevent the conversion of products back to substrates.

  3. drive reactions to completion while other catalysts drive reactions to equilibrium.

  4. lower the activation energy for the reactions they catalyze.

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TLS Online TPP Program

#Question id: 5740

#XL - S Microbiology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

TLS Online TPP Program

#Question id: 5740

#XL - T Zoology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

TLS Online TPP Program

#Question id: 5740

#XL - R Botany

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

TLS Online TPP Program

#Question id: 5741

#XL - S Microbiology

In a mammal 2 Barr bodies are observed.  How many X chromosomes does the organism have?

TLS Online TPP Program

#Question id: 5741

#XL - T Zoology

In a mammal 2 Barr bodies are observed.  How many X chromosomes does the organism have?

TLS Online TPP Program

#Question id: 5742

#XL - S Microbiology

When an allotetraploid (AABB) is backcrossed to one of its progenitor species (AA), a sterile progeny is produced.  The genomic composition of this sterile individual can be best represented by