Practice Questions

TLS Online TPP Program

#Question id: 3881

Which one of the following statements about mRNA stability is true?

#3. Fundamental Processes

Degradation always proceeds in the 5' to 3' direction.
Degradation of mRNA by polynucleotide phosphorylase yields 5'-nucleoside monophosphates.
In general, bacterial mRNAs have longer half-lives than do eukaryotic mRNAs.
Secondary structure in mRNA (hairpins, for example) slows the rate of degradation.

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TLS Online TPP Program

#Question id: 5249

#8. Inheritance Biology

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?

TLS Online TPP Program

#Question id: 3695

#3. Fundamental Processes

DNA polymerase is highly processive and required for the elongation phase of DNA replication?

TLS Online TPP Program

#Question id: 17220

#7. System Physiology – Animal

Which of the following occurs when certain adaptive hormones are released and cause changes in the structure and chemical composition of the body?

TLS Online TPP Program

#Question id: 10610

#10. Ecological Principles

Among the following which statement is false about r-selected species?

TLS Online TPP Program

#Question id: 9223

#9. Diversity of Life Forms

Managing southeastern forests specifically for the red-cockaded woodpecker ________.