Which of the following is the most accurate comparison of the two yeast samples studied in the microarray analysis at the time of sporulation?
a) the number of different genes expressed in sporulating yeast is likely to be greater than the number of different genes expressed in nonsporulating yeast.
b) the two yeast samples share a common genome, but display differences in their transcriptomes.
c) the two yeast samples share a common transcriptome, but display differences in their genomes.
d) cdnas from sporulating yeast were applied to a microarray spotted with cy-5–labeled gene segments.
e) cdnas from nonsporulating yeast were applied to a microarray spotted with cy-3–labeled gene segments.

Anurse is administering a drug that blocks the protease enzyme so new viral particles cannot mature. which category of drugs is the nurse most likely administering

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of