To what do transcription factors bind? (select all that apply.)
a. promoter region

b. start codons

c. acceptor sites

d. donor sites

e. dna

f. rna (mrna, trna, rrna, small rnas)

g. dna polymerase

h. rna polymerase

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.