Assignment:Genetic Inheritance and Mutation

Assignment:Genetic Inheritance and Mutation

Assignment:Genetic Inheritance and Mutation

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Genetic Inheritance and Mutation
Aminimum of 350 words with references. Please read carefully before enswering all questions.

Mutations are changes that occur within the genes of an organism. Sometimes these mutations impact a single gene, while other mutations impact the number or structure of entire chromosomes. Since many mutations change just one tiny piece of information in one single piece of DNA, they usually do not cause any problems. For example, imagine if someone sent you a long email and accidentally misspelled the word “friend” as “freind.” You would still understand the email and would probably still even catch the original meaning – this is a good analogy for what happens with a point mutation, where just one part of a gene is changed.

However, sometimes a single mistake can make a big difference. Imagine if, while composing a long email, you accidentally select and delete an entire paragraph or perhaps auto-correct changes a critical word. You can imagine (and perhaps have even experienced) how such a mistake might cause great confusion and miscommunication.

Many genetic disorders are caused by changes to a single gene in the form of a point mutation or due to a chromosomal abnormality like a chromosome disorder. Sometimes these mutations are passed from one generation to the next, just like other harmless traits like eye color and blood type. These mutations may cause specific disorders, or they may predispose a person to a common disease like cancer or heart disease.

Review the following resources to learn more about genetics and the implications of our genetic knowledge:

http://extmedia.kaplan.edu/genEd/SC200/1605A/SC200_U7_Discussion_Resources.pdf

During the week, discuss the following with your classmates. Be sure to use the provided course materials and feel free to share additional information you find in the KU Library or through your own research.

Imagine that you have a particular genetic trait and that you have four children. Two of the four children also possess this trait. Meanwhile, the other biological parent of your children does not possess the trait.

Explain why you think the trait in the scenario is dominant or recessive.
Based upon your response, describe why it would or would not be possible for the trait in the scenario to “skip” a generation.
Patterns of inheritance within organisms like pea plants, fruit flies, mice, and others are somewhat easy to determine since their mating practices can easily be controlled. Apart from controlling who mates with whom, what other characteristics make species like these ideal for studying genetics?
Select and describe a health problem that you believe has a genetic component at least partially inherited. If you do not identify an inherited health condition within your family, choose a disease that interests you or impacts a friend or other family member. Would you be interested in having genetic testing to determine whether you carry a genetic mutation for a particular disorder or a genetic predisposition for a disease? Why/why not? What are the advantages and disadvantages of determining your predisposition?
Explore the current state of research for the health problem you selected. Focus on one of the following to discuss as they relate to the genetics of the disease:
Cause
Testing/Screening/Prevention
Treatments/Therapies/Cures

You must proofread your paper. But do not strictly rely on your computer’s spell-checker and grammar-checker; failure to do so indicates a lack of effort on your part and you can expect your grade to suffer accordingly. Papers with numerous misspelled words and grammatical mistakes will be penalized. Read over your paper – in silence and then aloud – before handing it in and make corrections as necessary. Often it is advantageous to have a friend proofread your paper for obvious errors. Handwritten corrections are preferable to uncorrected mistakes.

Use a standard 10 to 12 point (10 to 12 characters per inch) typeface. Smaller or compressed type and papers with small margins or single-spacing are hard to read. It is better to let your essay run over the recommended number of pages than to try to compress it into fewer pages.

Likewise, large type, large margins, large indentations, triple-spacing, increased leading (space between lines), increased kerning (space between letters), and any other such attempts at “padding” to increase the length of a paper are unacceptable, wasteful of trees, and will not fool your professor.

The paper must be neatly formatted, double-spaced with a one-inch margin on the top, bottom, and sides of each page. When submitting hard copy, be sure to use white paper and print out using dark ink. If it is hard to read your essay, it will also be hard to follow your argument.

 

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