Practice Questions

TLS Online TPP Program

#Question id: 1434

A bone tumor sample appears to be heterozygous for a p53 mutation. The most likely explanation for this finding is:

#Unit 4. Cell Communication and Cell Signaling

Mutated p53 is an oncogene.
The p53 mutation is resulting in a dominant negative p53 protein.
The p53 mutation is resulting in a premature stop codon, and no functional protein is made from that allele.
There was a mistake in labeling the tissue sample—all tumors musts lack p53.

More Questions

#Question id: 5021

#Unit 11. Evolution and Behavior

Most dinosaurs and pterosaurs become extinct at the close of the __________ era.

#Question id: 5022

#Unit 11. Evolution and Behavior

Almost all of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the

#Question id: 5023

#Unit 11. Evolution and Behavior

The origin of the craniates occurred at roughly the same time as the

#Question id: 5024

#Unit 11. Evolution and Behavior

Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?

#Question id: 5025

#Unit 11. Evolution and Behavior

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

#Question id: 5026

#Unit 11. Evolution and Behavior

Whatever its ultimate cause(s), the Cambrian explosion is a prime example of