Examples of RNA processing

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Complete the following and submit the Word document by midnight Sunday. Remember to include complete citations for all sources used to answer each question.

1. Explain the four roles that DNA plays in cells? How are these roles influenced by DNA’s structure? Be sure you demonstrate your understanding of DNA’s structure in your answer.

2. Match the terms with the most suitable description.
_____ genetic code             a.  Examples of RNA processing
_____ promoter                   b. Sequence of three nucleotides that code for an amino acid.
_____ exon                          c. Location on DNA where RNA polymerase attaches.
_____ intron                        d. Sequence of three nucleotides that is complementary to a codon triplet.
_____ anticodon                  e. Portion of a gene that is excised from the RNA transcript.
_____ codon                        f.  Rules that convert a nucleotide sequence into a protein.
_____ cap and tail               g. Parts of a gene that are expressed.

3. Briefly explain the differences among messenger RNA, transfer RNA and ribosomal RNA in terms of the roles they play in transcription and translation and where they are found in the cell.

4. Using the genetic code table (Fig 10.11 on p 180), take the following DNA sequence and complete the following:
T A C C C C A T G T A A C A T A C C A C T

Complementary DNA strand _________________________________

mRNA strand _____________________________________________

Amino acid sequence _____________________________________________________

5. Part of the coding sequence of a gene produces an mRNA sequence of
A U G A A G G C U C C U C C A A G C G G C

DNA sequence _________________________________

Amino acid sequence _____________________________________________

6. Review pp 178-185 in your book and view the following animation. Then complete the following table. You may need to watch it the video more than once to catch the details.

Genome British Columbia. 2007. Gene Expression

QuestionTranscriptionTranslationWhat is it, in brief?[[[[[[[[[[[[Where does it occur in the cell?[[[[[[[[[[[[What is the product?[[[[[[[[[[[[Describe how the product is modified to reach its final form.[[[[[[[[[[[[

 
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“Tarnita’s Termites, Pacific Lampreys, And Large Brains”

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“Tarnita’s Termites, Pacific Lampreys, and Large Brains”

For your primary post, please respond to one of the following three topics with a post of at least 125 words that addresses each point given in the instructions. Also, please reply to at least one fellow student on any topic.

Topic 1

: Population Distribution of Termites in a Savanna. Watch the video (1) describing Corina Tarnita’s research on the spacing of termite mounds in savanna ecosystems, and then address the following:

  • (a) What were Tarnita’s findings about the spacing of termite mounds?
  • (b) What does Tarnita think is the main factor that governs the spatial distribution of the termite mounds?
  • (c) How do the termite mounds benefit other organisms on the savanna?

Topic 2

:  Pacific Lampreys. Watch the video about Pacific Lampreys (2)*, then address the following:

  • (a) Where do Pacific lampreys fall in the taxonomy of vertebrates?
  • (b) What challenges do Pacific lamprey populations face?
  • (c) Why are Native American tribes of the Northwest concerned about them? (Please note: take care not to confuse the Pacific lamprey (described in the video) with the Sea Lamprey, which is a completely different species that is considered an invasive species in the Great Lakes).

Topic 3 [article]: Supporting the Energy Needs of a Large Brain. As discussed in the article by Zimmer (3)*, brain tissue is energetically expensive. For a species to evolve a large brain, it may need to make certain adjustments to ensure that enough energy is available to support brain function. Zimmer discusses various hypotheses about such adjustments in the human line of descent. Explain one of these adjustments.

References (in Strayer Writing Standards format).

  1. HHMI Biointeractive (2015, November 11). Analyzing patterns in the savanna landscape. [Video]. Retrieved from https://youtu.be/nJGpABrEatc
  2. U.S. Fish & Wildlife Service. (2012). Taking the initiative to conserve Pacific Lamprey. [Video]. Retrieved from https://www.youtube.com/watch?v=dkwfDVAoSXk
  3. Carl Zimmer, July/August 2011. The brain. Discover, 32 (6), 18-19. https://search.ebscohost.com/login.aspx?direct=true&db=a9h&AN=61992134&site=ehost-live&scope=site
 
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Human Pathophysiology Discussion Questions

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Reproductive Disorders

Jane, aged 23 years, tested positive for gonorrhea a year ago. Her partner was also diagnosed with penicillinase producing N. gonorrhoeae, and was given antibiotics. However, on the same day, Jane was taken to the ER with severe abdominal pain and vomiting. Her cervical smear test revealed N. gonorrhoeaeas well as other bacteria.

  • What are the signs and symptoms of gonorrhea in a male and in a female?
  • How does gonorrhea lead to PID?
  • Is there any peritonitis involved?
  • Will Jane develop infertility?
  • What are drug-resistant bacteria?

Your responses should clarify your understanding of the topic. They should be your own, original and free from plagiarism. Use correct medical terminology, spelling, and grammar.

This assignment is due tomorrow night at 11:59pm. If you can not follow instructions please do not accept bid.

Reproductive Disorders

Jane, aged 23 years, tested positive for gonorrhea a year ago. Her partner was also diagnosed with penicillinase producing N. gonorrhoeae, and was given antibiotics. However, on the same day, Jane was taken to the ER with severe abdominal pain and vomiting. Her cervical smear test revealed N. gonorrhoeaeas well as other bacteria.

  • What are the signs and symptoms of gonorrhea in a male and in a female?
  • How does gonorrhea lead to PID?
  • Is there any peritonitis involved?
  • Will Jane develop infertility?
  • What are drug-resistant bacteria?

Your responses should clarify your understanding of the topic. They should be your own, original and free from plagiarism. Use correct medical terminology, spelling, and grammar.

This assignment is due tomorrow night at 11:59pm. If you can not follow instructions please do not accept bid.

 
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Alterations in Hormone Regulation

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Module 09 Discussion: Alterations in Hormone Regulation
Discuss:

A patient having renal surgery suddenly develops massive hypertension and dies during surgery. An autopsy shows the presence of a pheochromocytoma. In your own words, explain how this incident might have happened.
Your favorite cousin, who is 20 years old, has just been diagnosed with type 2 diabetes. He is overweight and spends most of his time playing computer games or watching television. As a health professional, what advice will you give him?
Your patient has just been diagnosed with SIADH. His mother is asking you what this condition is and what she should expect next. What will you tell her?
Your patient has been admitted to the hospital in preparation for a total removal of her thyroid gland to reverse her hyperthyroidism. She suddenly develops thyroid storm. What manifestations will you find, and what is the pathophysiologic basis of thyroid storm?

 
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