1. Why are there more stomata on the lower surface compared to the upper part of the leaf? 2. What structural advantage is provided to stems that have their vascular tissue arranged in a ring near the periphery of thestem? 3. In what two ways do the stems of corn […]

You have recovered a strain of E. coli with a null mutation of the gene for catabolite activator protein (CAP). Which of the following do you expect to be true regarding the expression of a completely wild-type operon? Please note, more than one may be true. A) Both beta-gal and […]

Question: In wild pigs, the allele for black fur (B) is dominant over the allele for brown (b) fur. A black wild pig is crossed with a brown wild pig, producing five F1 black wild pigs and six F1 brown wild pigs. a. (Assuming that no crossing over takes place) how […]

You make some RNA in vitro by adding some NTPs into a tube. You want to reproduce some of the work that led to an understanding of how the genetic code works. You mix two nucleotides together in a 3C to 1G ratio. a) List all the codons that could […]