Sodium chloride (NaCl) in water can be described by
any EXCEPT which of the following?
a. Na+ and Cl– form
b. a solute
c. ionized
d. forms a hydrophobic interaction
e. dissolved
Answer: d
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Where does tRNA #2 move to after this bonding of lysine to the polypeptide?
A) A site B) P site C) E site D) exit tunnel E) directly to the cytosol
A pro- strain of bacteria, which has not been in contact with any other strains, develops the ability to produce the amino acid proline. This mutant "rescue" could have been caused by
A. addition of the pro+ gene via transduction. B. mutation of the pro- gene during phage integration. C. removal of the pro- gene during excision. D. addition of the pro+ gene via transformation. E. correction of the pro- gene by reverse transcriptase.
The squares at #2 represent the ____ of the ____
a. genotypes; parents b. phenotypes; parents c. genotypes; offspring d. phenotypes; offspring e. none of these
The cells at the end of meiosis I are not ready to function as gametes. Why not?
A) The chromosomes have divided, but there has been no cytokinesis. B) The homologous chromosomes have not yet separated. C) They have the right number of chromosomes but too much cytoplasm. D) They are haploid, but the chromosomes are still in duplicated form. E) They have the right number of chromosomes but no cytoplasm.