Although the medium ground finch normally eats small, soft seeds, a severe drought in the 1970s reduced the supply of these seeds. As a result, finches with slightly larger beaks, who could eat larger and harder seeds, were naturally selected over finches with smaller beaks. After a few generations, whole populations of these finches developed beaks that are ten percent larger than they were before the drought.

What is the next step in the process after a substrate enters the active site of an enzyme

What is gene expression control that occurs after the generation of rna

Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)