Suppose you performed a triplet binding assay with the triplet 5'-UAA-3'. What radiolabeled amino acids do you expect to find bound to the filter?
A. Tyrosine
B. Asparagine
C. Methionine
D. None
D
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Terry takes the body of the snakelike organism and slices it open along its dorsal side. If it is a hagfish, what should Terry see?
A) a well-developed series of bony vertebrae surrounding the spinal cord B) a well-developed series of cartilaginous vertebrae surrounding the spinal cord C) a tube of cartilage (surrounding the notochord) with dorsal projections on both sides of the spinal cord D) a notochord, located underneath the spinal cord
Which statement is true?
1.The hydrogen bonding of cytosine to guanine is an example of complementary base pairing. 2.Adenine always pairs up with guanine in DNA, and cytosine always teams up with thymine. 3.Each of the four nucleotides in a DNA molecule has the same nitrogen-containing base. 4.When adenine base pairs with thymine, they are linked by three hydrogen bonds. 5.In the DNA of all species, the amount of cytosine never equals the amount of guanine.
Which kingdom in the Domain Eukarya contains multicellular photosynthesizers?
A) Plantae B) Bacteria C) Fungi D) Archaea E) Animalia
Export of RNAs from the nucleus occurs primarily by
a. passive diffusion through nuclear pore complexes. b. cotranscriptional insertion through nuclear envelope membrane protein pores. c. selective transport through nuclear pore complexes in association with proteins. d. release from the nucleus when it breaks down at mitosis.