Unit 3 Discussion

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Unit 3 Discussion: Volcanos and Geysers

What is the most dangerous volcano? Research different volcanos found on Earth and defend your choice with evidence regarding a specific volcano, size, type of volcano, and characteristics.

The geyser called Old Faithful has been erupting for perhaps hundreds of years. One day, it could stop. Why might geysers completely stop erupting?

Several videos are provided below for supplemental use.

World Documentary. (2014, November 12). Deadliest Volcanoes /// History Channel Documentary [Video]. YouTube. 

WatchMojo.com. (2018, May 22). Top 10 Most Dangerous Volcanoes [Video]. YouTube. 

DailyTop20s. (2019, March 21). 10 BIGGEST Water Geysers on Earth [Video]. YouTube. 

I’m working on a biology discussion question and need an explanation and answer to help me learn.

Work from the Brown and Goldstein lab provided insights into cholesterol homeostasis that were used to develop several of the LDL cholesterol-lowering therapies, including statins that remain in use today. However, in some patients, statins were not as effective as expected, suggestive of additional mechanisms regulating the LDL receptor. Investigate other LDL cholesterol-lowering therapies (other than PCSK-9 inhibitors),

select 1, and compare and contrast the mechanisms of action between the class of drug you select and statins. Include side effects for both types of drugs and information on their efficacy.

 

Escherichia coli and Neisseria sicca – organisms I was assigned

1. Be sure to fill out two tables—one for each organism. The tables are on the next two pages. You should include if the result is positive/negative or what the results are (e.g. Organism is not motile).

2. Optional: On the bottom of each table, either describe in words what each test result looks like, or include a picture of the result. If you had a Gram negative coccus for the result for the Gram stain, you could say “This organism is round and stains either red or pink on the Gram

I’m working on a genetics question and need an explanation and answer to help me learn.

You cross a female homozygous recessive Igf2 dwarf mouse with a male
homozygous dominant Igf2 normal sized mouse and see all progeny are dwarf. The
reciprocal cross is done (female homozygous dominant normal sized and male
homozygous recessive dwarf) and all the progeny are normal sized. What is going on?
A) This demonstrates dominant epistasis
B) This demonstrates recessive epistasis
C) The maternal homolog is imprinted and silenced
D) The paternal homolog is imprinted and silenced

Your lab report should consist of the following sections with appropriate titles in this order:

1. Title page
2. Purpose and procedures (scan/copied/pictures from lab notebook)
3. Data and Observations (scan/copied/pictures from lab notebook)
4. Analysis Section: (see Exp EQ320 Data Analysis for guidance on how to do this). Ignore Question 1 about the absorbance vs wavelength data. Include in this order:
   1. Graph 2: Absorbance vs concentration – annotated with best fit straight line and lines showing determination of concentration of FeSCN2+
   2. Answers to Q 2 – 4: show YOUR calculations for Q2, Q3a and Q4.
   3. Data table from Excel file.
5. Conclusion