10. Additions or deletions of bases in the nucleotide sequence of a structural gene most often result in (A) an altered sequence of amino acids in the protein that the gene encodes (B) insertion of a new intron into the coding sequence of the gene (C) decreased histone binding (D) decreased excision repair (E) increased levels of mRNA production

7. The logistic equation on the right is used to describe the rate of change of a population, N, with time, t, where r is the intrinsic rate of increase and K is the carrying capacity. Which of the following statements is true for this equation? (A) For a given population, r is variable. (B) For a given environment, K is variable. (C) As Napproaches K, dN/dt approaches 0. (D) As N approaches K, dN/dt approaches K. (E) As N approaches K, dN/at approaches r.

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