The plant photoreceptor phytochrome is important for which of the following?
a. photomorphogenesis
b. photorespiration
c. growth
d. photosynthesis
Ans: a. photomorphogenesis
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During a camping and hiking expedition in the Ice Age National Scenic Trail at Hartman Creek State Park (Waupaca, WI), an individual notices a small tick on his arm
After removing the partially embedded deer tick, what symptoms should this individual look for to indicate infection of Borrelia burgdorferi? Also, what should be done on future hiking trips to decrease the likelihood of B. burgdorferi infection? What will be an ideal response?
Molecules such as H-H and O=O are held together by ____
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
Which one of the following structures is characteristic of BOTH eukaryotic and prokaryotic cells?
A) nucleus B) mitochondria C) endoplasmic reticulum D) cell membrane E) Golgi apparatus
The enzyme ________ is used by retroviruses to transfer information from RNA to DNA
a. RNA polymerase b. reverse transcriptase c. integrase d. helicase