Practice Questions

TLS Online TPP Program

#Question id: 4531

Specific elements called insulators control the actions of activators. When placed between an enhancer and a promoter,

#Unit 3. Fundamental Processes

Neither the activators at the enhancer nor the promoter is inactivated
Do not actively repress the promoter.
Inhibits activation of the gene by that enhancer.
And the original promoter can be activated by another enhancer placed downstream.

More Questions

#Question id: 8694

#Unit 9. Diversity of Life Forms

Which of the following is (are) problematic when the goal is to construct phylogenies that accurately reflect evolutionary history?

#Question id: 8695

#Unit 9. Diversity of Life Forms

Phylogenetic trees constructed from evidence from molecular systematics are based on similarities in ________.

#Question id: 8696

#Unit 9. Diversity of Life Forms

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then hair is a shared ________.

#Question id: 8697

#Unit 9. Diversity of Life Forms

Use the figure to answer the following question.

Which extinct species should be the best candidate to serve as the outgroup for the clade whose common ancestor occurs at position 2 in the figure?

#Question id: 8698

#Unit 9. Diversity of Life Forms

Use the figure to answer the following question.

If the figure above is an accurate depiction of relatedness, then which of the following should be an accurate statement?

#Question id: 8699

#Unit 9. Diversity of Life Forms

Use the figure to answer the following question.

If the figure is an accurate depiction of relatedness, then which of the following should be an accurate statement?