A regulatory protein that attracts RNA polymerase to its promoter is an example of what type of regulation?

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#Question id: 10975

#Unit 7. System Physiology – Animal

A teenaged boy with numerous nosebleeds was referred to a physician for evaluation prior to a minor surgery. His prothrombin time (PT) was 11 sec (11–15 sec normal), partial thromboplastin time (PTT) was 58 sec (25–40 sec normal), and bleeding time was 6.5 min (2–7 min normal). Which of the following is most likely abnormal in this young man?

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#Question id: 33421

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following is found only in prokaryotes

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#Question id: 26398

#Unit 3. Fundamental Processes

Which of the following are the key licensing factors and helicase loading proteins

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#Question id: 2314

#Unit 2. Cellular Organization

Mitochondria are inherited from.

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#Question id: 29049

#Unit 10. Ecological Principles

Some given statements about anti freezing are given;

a. some invertebrates to withstand temperatures as low as –18°C without freezing, in presence of glycoproteins

b. Sodium, potassium, or chloride ions involve to increasing  the blood freezing point, so the lack of these ions some species help to lower the blood freezing point

c. Amphibians release large amount of glucose into the blood to prevent freezing of blood in cold

d. Sodium, potassium or urea function as anti freezing in their blood

e. Glycine causes supercooling in plants

Which of the following statements about supercooling/anti freezing is correct?