Albinism, caused by a mutational disruption in melanin (skin pigm...

Question

Albinism, caused by a mutational disruption in melanin (skin pigment) production, has been observed in many species, including humans. In 1991, and again recently in 2017, the only documented observations of an albino humpback whale (named 'Migaloo') were observed near New South Wales. Recently, Polanowski and coworkers (Polanowski, A., S. Robinson-Laverick, and D. Paton. (2012). Journal of Heredity 103:130–133) studied the genetics of humpback whales from the east coast of Australia, including Migaloo.

What data would be helpful in determining the answer to part (a)?

Accepted Answer

Hey everyone, Let's take a look at this question together. Albinism is a genetic defect that affects the production of melanin in the body. In most cases albinism as parents that do not show symptoms of the condition. People who have an affected gene but are not showing any symptoms are called what? When we're talking about people who have that affected gene, but they're not showing it. It means that they are carrying that affected gene, but because they don't express it and they have no symptoms of the condition, it means that the affected allele is recessive because it is being masked by that dominant allele. And so people who have that recessive affected are called air ears. Answer choice B. The correct answer because an individual that is a carrier is one who carries that affected gene, but they show zero symptoms. And so answer choice B is the correct answer. And we can also eliminate the other answer choices because answer choice A hybrid is the offspring of two different individuals are different in the bedroom and then in breeds our offspring of who related individuals were related. And then lastly, mutants are the result of a patient. So the only answer choice here that best represents those people who have that affected gene but do not show any symptoms is answer choice B carrier. I hope you found this video to be helpful. Thank you and goodbye

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