1-methyladenine and 3MC is corrected by an enzyme that uses an oxygenating mechanism alkB by reversal mechanism

TLS Online TPP Program

#Id: 7822

#Unit 10. Ecological Principles

Glycoproteins can permit some invertebrates to withstand temperatures as low as –18°C without freezing. 

Antarctic fish also have glycoproteins in their blood and some species accumulate sodium, potassium, or chloride ions or urea, all of which lower the blood freezing point.

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#Id: 1216

#Unit 7. System Physiology – Animal

The chief cells of the parathyroid glands synthesize and secrete PTH.

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#Id: 2406

#Unit 3. Fundamental Processes

RNA polymerase performs two proofreading functions on that growing transcript

pyrophosphorolytic editing

hydrolytic editing

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#Id: 1062

#Unit 5. Developmental Biology

In rice, a SDP, the CO homolog Heading-date 1 (Hd1) acts as an inhibitor of flowering.

TLS Online TPP Program

#Id: 4673

#Unit 13. Methods in Biology

A related quantitative technique, rocket electrophoresis, does permit measurement of antigen levels. In rocket electrophoresis, a negatively charged antigen is electrophoresed in a gel containing antibody. The precipitate formed between antigen and antibody has the shape of a rocket, the height of which is proportional to the concentration of antigen in the well.