Practice Questions

TLS Online TPP Program

#Question id: 5230

Homeotic genes

#Unit 11. Evolution and Behavior

encode transcription factors that control the expression of genes responsible for specific anatomical structures.
are found only in Drosophila and other arthropods.
are the only genes that contain the homeobox domain.
encode proteins that form anatomical structures in the fly.

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TLS Online TPP Program

#Question id: 17812

#Unit 7. System Physiology – Animal

The body's main stress hormone is ______.

TLS Online TPP Program

#Question id: 313

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the difference between a particle being hydrated versus being solvated?

TLS Online TPP Program

#Question id: 11300

#Unit 10. Ecological Principles

What type of organisms convert nitrates and nitrites into nitrogen gas?

TLS Online TPP Program

#Question id: 9186

#Unit 9. Diversity of Life Forms

A pathogenic fungus invades a plant. What does the infected plant produce in response to the attack?

TLS Online TPP Program

#Question id: 11008

#Unit 7. System Physiology – Animal

Which of the following events is associated with the first heart sound?