Ralph researcher studies transcription of his favorite gene, fave1, in bacteria. he notes that the wildtype strain of bacteria constantly expresses favorite-1 protein unless he the protein squash-1 is also expressed. when squash-1 is expressed, the level of favorite-1 protein decreases. one of his mutant strains continues to express favorite-1 protein regardless of whether squash-1 is present or not. what might be the regulatory mechanism of the gene coding for favorite-1 and what is the role of squash-1.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.