According to the map, which continents have the highest rates of cystic fibrosis?
Based on the information from the reading, explain why this is the case.
What causes cystic fibrosis?
Typically, a lethal genetic disorder is very rare. Cystic fibrosis, on the other hand, is the most common potentially lethal genetic disorder among Caucasians. Describe one hypothesis explaining why this is the case.
Fill in the Punnett square below to visualize the offspring of a cystic fibrosis carrier and a person who doesn't have cystic fibrosis and isn't a carrier. Use F to denote the normal allele and f to denote the mutated CFR allele.
What percentage of their children are likely to have cystic fibrosis?
What percentage of their children are likely to be carriers of cystic fibrosis?

Fill in the Punnett square below to visualize the offspring of two cystic fibrosis carriers. Use F to denote the normal allele and f to denote the mutated CFR allele.
What percentage of their children are likely to have cystic fibrosis?
What percentage of their children are likely to be carriers of cystic fibrosis?

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.