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What is the difference between apoptosis and necrosis?

Assignment: SCI115 Week5 Discussion-STR

SCI 115 Week 5 Discussion STR
Choose one of the following three topics for your primary post. Your primary post should address everything that the instructions call for (for the topic you choose). Your post should also be at least 125 words in length. Additionally, please respond to at least one other discussant on any topic.

Topic 1. Sexual Reproduction in Unicellular Eukaryotes. Watch the instructor’s video about “Sexual Reproduction in Unicellular Eukaryotes” (1)* which can be found in the Instructor Insights section for this week. For a single-celled species to be capable of sexual reproduction, the species must have both haploid and diploid forms

(a) Describe four things that you learned from the video.
(b) Explain how this relates to this week’s lesson.
Topic 2. Apoptosis. Watch the Khan Academy video about apoptosis (2)*, then address the following issues in your own words:

(a) What is the difference between apoptosis and necrosis?
(b) What is the role of apoptosis in the normal, healthy development of animals?
Reminder: you don’t need to cite the Khan Academy video for this topic, but if you use any other sources, you must cite them.
Topic 3. Tumor-suppressor genes versus Proto-oncogenes. This is a library-research topic in which you are required to provide your sources. Mutations in tumor suppressor genes can contribute to or cause cancer, just as mutations in proto-oncogenes can also contribute to or cause cancer. However, tumor suppressor genes are very different from proto-oncogenes.

(a) What is the basic difference between a tumor suppressor gene and a proto-oncogene?
(b) Explain why a gain-of-function mutation to a proto-oncogene (or its promoter) may be associated with increased risk of cancer.
(c) Explain why a loss-of-function mutation to a tumor suppressor gene may be associated with increased risk of cancer.
References:

James Cox, April 15, 2018, Sexual reproduction in a unicellular eukaryote (version 2). See the video in the Week 5 Instructor Insights or the following link https://cdnapisec.kaltura.com/index.php/extwidget/preview/partner_id/956951/uiconf_id/38285871/entry_id/0_7ruy782g/embed/dynamic
Khan Academy, No date given, Apoptosis, https://www.khanacademy.org/science/biology/cellular-molecular-biology/stem-cells-and-cancer/v/apoptosis

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.