TLS Online TPP Program

#Id: 5875

#Unit 10. Ecological Principles

Relative absorption per ppm of increase 

CO2= 1

Methane= 32

Nitrous oxide= 150

Chlorofluorocarbons= >10000

TLS Online TPP Program

#Id: 4910

#Unit 13. Methods in Biology

Variance is always non-negative since each term in the variance sum is squared and therefore the result is either positive or zero.

TLS Online TPP Program

#Id: 10133

#Unit 6. System Physiology – Plant

ABCB19 mediates auxin movement to root tip.

ABCB4 regulates auxin levels in root hairs.

ABCB1-mediated nondirectional auxin movement in root and shoot

TLS Online TPP Program

#Id: 2978

#Unit 3. Fundamental Processes

This alteration to the structure of the chromosome is accomplished by the enzyme topoisomerase. Replication cannot occur on supercoiled DNA, only the relaxed form.

TLS Online TPP Program

#Id: 7502

#Unit 4. Cell Communication and Cell Signaling

Recognition of Recombination Signal Sequence (RSS) by the RAG1/RAG2 enzyme complex.