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TLS Online TPP Program

#Question id: 3881

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

#Unit 3. Fundamental Processes

  1. Degradation always proceeds in the 5' to 3' direction.

  2. Degradation of mRNA by polynucleotide phosphorylase yields 5'-nucleoside monophosphates.

  3. In general, bacterial mRNAs have longer half-lives than do eukaryotic mRNAs.

  4. Secondary structure in mRNA (hairpins, for example) slows the rate of degradation.

More Questions
TLS Online TPP Program

#Question id: 4166

#Unit 3. Fundamental Processes

At the ribosome the template mRNA is translated in the __ direction, while the protein is synthesized in the __ direction.
TLS Online TPP Program

#Question id: 4150

#Unit 3. Fundamental Processes

Posttranslational glycosylation of proteins is inhibited specifically by:
TLS Online TPP Program

#Question id: 20994

#Unit 12. Applied Biology

Some examples of bacteria involved in toluene degradation activity are
1. Pseudomonas
2. Thiobacillus
3. Geobacter metallireducens
4. Psychrophile
Which of the below combinations are correct?
TLS Online TPP Program

#Question id: 19692

#Unit 13. Methods in Biology

What does ST interval show on ECG?
TLS Online TPP Program

#Question id: 10966

#Unit 7. System Physiology – Animal

A couple requests blood typing of their 2-year-old child (father AB, Rh-negative; mother B, Rhnegative). Results of hemagglutination assays of the child’s blood are shown in the next figure. Which of the following conclusions concerning the child’s parentage is valid?