Practice Questions

TLS Online TPP Program

#Question id: 1389

Why has C. elegans proven to be a useful model for understanding apoptosis?

#Unit 4. Cell Communication and Cell Signaling

C. elegans does not naturally use apoptosis, but can be induced to do so in the laboratory.
C. elegans undergoes a fixed and easy-to-visualize number of apoptotic events during its normal development.
C. elegans has large cells wherein apoptosis is easily observed without the aid of a microscope.
As C. elegans ages, its cells die progressively until the whole organism is dead.

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TLS Online TPP Program

#Question id: 4964

#Unit 11. Evolution and Behavior

Which of the following statements provides the strongest evidence that prokaryotes evolved before eukaryotes?

TLS Online TPP Program

#Question id: 7299

#Unit 5. Developmental Biology

Maintenance of the shoot meristems in adult Arabidopsis plants relies on which of the following mechanisms?

TLS Online TPP Program

#Question id: 8927

#Unit 9. Diversity of Life Forms

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that

TLS Online TPP Program

#Question id: 2095

#Unit 2. Cellular Organization

Glycolipids and glycoproteins are especially abundant in the

TLS Online TPP Program

#Question id: 11105

#Unit 7. System Physiology – Animal

Which one of the following is NOT a function of the paranasal sinuses: