#Question id: 9237
#Unit 9. Diversity of Life Forms
Which of the following factors causes extremely high levels of toxic chemicals in fish-eating birds?
#Question id: 885
#Unit 1. Molecules and their Interaction Relevant to Biology
The half-lives of many cytoplasmic proteins vary with the identities of their N-terminal residues via the N-end rule.
a) Proteins with the “destabilizing” N-terminal residues contain Asp, Arg, Leu, Lys, and Phe with their half-lives > 2 to 3 hours
b) Proteins with the “destabilizing” N-terminal residues with their half-lives of only 2 to 3 minutes contain; Asp, Arg, Leu, Lys, and Phe
c) Proteins contain Ala, Gly, Met, Ser, Thr, and Val have half-lives of >10 hours are stabilizing N-terminal residue in prokaryotes
d) Those with the “stabilizing” N-terminal residues Ala, Gly, Met, Ser, Thr, and Val have half-lives of >20 hours in eukaryotes
Which of the following is correct?
#Question id: 8861
#Unit 9. Diversity of Life Forms
Which of the following is true of members of the phylum Cnidaria?
#Question id: 3273
#Unit 11. Evolution and Behavior
The number of forward mutations is equal to the number of reverse mutations then
a) Population is in equilibrium for forward and reverse mutation rates
b) The population is being in Hardy–Weinberg equilibrium
c) No further change in allelic frequency
#Question id: 14485
#Unit 13. Methods in Biology