The protein opsin and the molecule retinal combine to form the pigment found in rods called _________
Fill in the blank(s) with correct word
Answer: rhodopsin
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Ribosomal subunits
a. come together in threes to form functional units. b. are composed of mRNA and structural proteins. c. are synthesized in the cytoplasm. d. converge only when mRNA is to be translated. e. are transcribed from the complementary strand of DNA that is used for tRNA transcription.
Plate tectonic theory is based on
a. a thermal convection model in which cool material in the earth’s mantle rises and spreads laterally beneath the crustal plates. b. the idea that the earth’s crust is fragmented into rigid crusts that are sinking slowly beneath crustal plates. c. the idea that coacervate formation causes continents to drift apart slowly on their crustal plates. d. observations that the sea floor is slowly spreading away from oceanic ridges due to thermal convection in the mantle. e. all of these.
Suppose you are studying a rare spontaneous cancer in cats, which you suspect is retrovirus-induced. What kinds of retroviral insertion could lead to cancer, and what kind of genetic signature would you look for to distinguish between them?
What will be an ideal response?
In a living organism, where are ionic bonds MOST likely to be found?
A) between DNA strands B) on the surface of a protein C) in the cytoplasm D) deep in a protein's core where water is excluded E) on the surface of a lipid