TLS Online TPP Program

#Question id: 1467


Which of the following statements correctly describes a characteristic of tumor-suppressor gene?

#Unit 4. Cell Communication and Cell Signaling
  1. They are frequently overexpressed in cancerous cells.

  2. They are cancer-causing genes introduced into cells by viruses.

  3. They encode proteins that help prevent uncontrolled cell growth.

  4. They often encode proteins that stimulate the cell cycle.

More Questions
TLS Online TPP Program

#Question id: 9160

#Unit 9. Diversity of Life Forms

Generally speaking, deserts are located in places where air masses are usually ________.

TLS Online TPP Program

#Question id: 9161

#Unit 9. Diversity of Life Forms

When climbing a mountain, we can observe transitions in biological communities that are analogous to the changes ________.

TLS Online TPP Program

#Question id: 9162

#Unit 9. Diversity of Life Forms

If the direction of Earth's rotation reversed, the most predictable effect would be ________.

TLS Online TPP Program

#Question id: 9163

#Unit 9. Diversity of Life Forms

Use the following figures to answer the question below


Based on the data in the figures, which of the following statements are correct?

I) Area 1 would be considered a desert because of its high average temperature.

II) Area 1 has more average precipitation than Area 2.

III) Area 2 would be considered a desert because of its low average precipitation.

IV) Area 2 has a larger annual temperature variation.

TLS Online TPP Program

#Question id: 9164

#Unit 9. Diversity of Life Forms

Use the following figures to answer the question below.


East of the Mississippi River, in Hopkinsville Kentucky, the mean annual precipitation is 130 cm. The mean annual temperature is 14.3°C. In the winter, the mean temperature is 7.3°C, while in summer it is 20.6°C. Using the climograph shown here, how would we classify the biome found in Hopkinsville?


TLS Online TPP Program

#Question id: 9165

#Unit 9. Diversity of Life Forms

Which of the following biomes spans the largest annual mean temperature range, but the narrowest mean precipitation range?