Practice Questions

TLS Online TPP Program

#Question id: 9154

The main reason polar regions are cooler than the equator is that ________.

#Unit 9. Diversity of Life Forms

solar radiation strikes the poles at a lower angle and travels through more atmosphere
the poles are farther from the sun than is the equator
the polar atmosphere is thinner and contains fewer greenhouse gases
the poles are permanently tilted away from the sun

More Questions

TLS Online TPP Program

#Question id: 2934

#Unit 2. Cellular Organization

Cyclin D/Cdk4 functions during:

TLS Online TPP Program

#Question id: 2935

#Unit 2. Cellular Organization

Breakdown of the nuclear envelope during mitosis is accomplished by CDK-dependent phosphorylation of lamins:

TLS Online TPP Program

#Question id: 2936

#Unit 2. Cellular Organization

The stable attachment of sister kinetochores to microtubules emanating from opposite spindle poles is called:

TLS Online TPP Program

#Question id: 2937

#Unit 2. Cellular Organization

Separase initiates sister chromatid segregation at anaphase by cleaving:

TLS Online TPP Program

#Question id: 2938

#Unit 2. Cellular Organization

Which of the following inhibit(s) cyclin A/Cdk2 activity?

TLS Online TPP Program

#Question id: 2939

#Unit 2. Cellular Organization

Failure of which cell-cycle checkpoint is most likely to result in non-dysjunction?