Biology

Both post should be around 350-400 words. You must use your textbook for one of the two required references on your initial post.  References must be no older than 5 years and must comply with rubric requirements.  The textbook that is being used for this class is: Understanding Pathophysiology. Sue E. Huether, Kathryn L. McCance. 6th ed, 2017 Use APA 7th edition

This assignment is DUE 26 Aug 2:00 pm CST

1. Debate the pros and cons of “Watchful Waiting” vs. the removal of a carcinoma in situ (CIS). (See Figure 10-3 in your Understanding Pathophysiology textbook pg. 236) Provide rationales for your views. 350-400 words

2. According to your textbook, “Chronic inflammation has been recognized for close to 150 as being an important factor in the development of cancer.” Hint: This topic is discussed in chapters other than chapters 10 and 11 in the textbook. Discuss the role of inflammation in cancer and give examples. Discuss prevention. Be sure to use your textbook and an outside reference. 350-400 words

Biology

Assignment 1:

Instructions:

Begin by downloading the following worksheet:

Light Spectrum and Plant Growth Lab Worksheet ….at the bottom of the page

The worksheet is your deliverable.  It is a MS-Word (docx) document.  Fill in the worksheet as you complete the lab, following the directions given on the worksheet.  There are some data tables to fill in and some questions to answer.

Run the lab at the following website

http://www.glencoe.com/sites/common_assets/science/virtual_labs/LS12/LS12.html

Follow the instructions on the worksheet.  The deliverable is the completed worksheet.  The tools and worksheet at the lab site are not accepted.  You must turn in the worksheet.

Note: This lab requires that your browser be able to run Adobe Flash.  You may need to give permission for your browser to run Adobe Flash.  If Flash is not installed on your computer, you may need to download it first. Please note that Adobe Flash is considered an “older technology” that will eventually be phased out, but it is still in widespread use.  It is available from   https://get.adobe.com/flashplayer/   In (rare) situations in which students cannot run the lab on their end, they may refer to the live session (or the recording of the live sessions, which will be posted).  The live session goes step by step through the lab, and gives all the data and information needed to fill in the worksheet.

I highly recommend the following PDF to orient you to the lab….

C:\Users\Student\Downloads\Assignment 1 Bio.pdf

Lab worksheet

Instructions:

· Go to the following Virtual Lab Website http://www.glencoe.com/sites/common_assets/science/virtual_labs/LS12/LS12.html

· The virtual lab runs under Flash. You may need to enable your browser to run it.

· Watch the short video clip about the white light spectrum and the pigments in plants.

· Using the controls to run the experiment, collect data to fill in the tables for radish and lettuce.

· Select the plant which will be planted in all pots, 3 pots per chamber.

· Select the color for each chamber.

· Turn the light switch “On” to run the experiment for a simulated 30 days.

· Use your mouse to grab the ruler and measure the height of the tallest part of the plant to the nearest centimeter. The height of each plant counts as one observation.

· Record the data in the appropriate data table.

· When you have recorded all three observations for a particular plant grown under particular conditions, calculate the average height of the plant under those conditions. To calculate the average, find the sum of the three observations, and then divide by three.

Table for Spinach (already filled out)

COLOR Red Orange Green Blue Violet
Measured Height of plant

(cm)

Observation 1 16 16 1 18 14
Observation 2 22 17 3 22 19
Observation 3 17 12 2 17 15
AVERAGE 18.3 15.0 2.0 19.0 16.0

TABLES TO FILL OUT

1. Table for Radish

COLOR Red Orange Green Blue Violet
Measured Height of plant

(cm)

Observation 1
Observation 2
Observation 3
AVERAGE

2. Table for Lettuce

COLOR Red Orange Green Blue Violet
Measured Height of plant

(cm)

Observation 1
Observation 2
Observation 3
AVERAGE

QUESTIONS TO ANSWER

3. Based on these observations, which color of light causes the greatest amount of plant growth?

4. Based on these observations, which color of light causes the least amount of plant growth?

5. In a short paragraph, explain how these observations are consistent with the information presented in the short video?

6. Given that white light contains all colors of the spectrum, what growth results would you expect under white light? Explain why.

Assignment 2:

Option 1. Carry out the Lab on your Computer

Complete the DNA Microarray Lab at https://learn.genetics.utah.edu/content/labs/microarray/  To begin the lab, click where it says “click on the microarray to begin“.  Note:  if you don’t see “click on the microarray to begin“, the most likely problem is that you don’t have Flash installed or that your browser needs permission to use it. For details, see the Flash Notes box.

The lab takes about 45 minutes. It is divided into three “chapters.” The first two chapters are very short segments that provide important background information. The third chapter is the actual lab in which you will take samples from normal tissue and cancerous tissue through the process used to apply the DNA microarray technique.

Flash Notes: This lab requires that your browser be able to run Adobe Flash. You may need to give permission for your browser to run Adobe Flash. If Flash is not installed on your computer, you may need to download it first. Please note that Adobe Flash is considered an “older technology” that will eventually be phased out, but it is still in widespread use. It is available from https://get.adobe.com/flashplayer/ In situations in which students cannot run the lab on their end, they may refer to the live session (or the recording of the live sessions, which will be posted). In the live session I will go step by step through the lab, and gives all the data and information needed to take the lab quiz.

Option 2. Watch the video walkthrough in its entirety

In this series of two videos, I go step-by-step through the entire lab from start to finish.  You may watch these videos instead of carrying out the lab on your end.  Together, these two videos cover the entire lab.  They provide you with an opportunity to learn everything you need to do well on the lab quiz. The sound quality is good, and if you have any trouble understanding my speech, accurate closed-captions are available.

Demonstration of DNA Microarray Lab — part 1 of 2  (length: 28 minutes)

https://cdnapisec.kaltura.com/index.php/extwidget/preview/partner_id/956951/uiconf_id/43830551/entry_id/0_rnr3y2rb/embed/dynamic

Demonstration of DNA Microarray Lab — part 2 of 2  (length: 9 minutes)

https://cdnapisec.kaltura.com/index.php/extwidget/preview/partner_id/956951/uiconf_id/43830551/entry_id/0_0ut8jgsj/embed/dynamic

Option 3. Read the Written Lab Manual (alternate)

This manual covers the lab in written form. It is a pdf file.  Reading this manual from start to finish is an alternative method for completing the lab.  This manual consists of screenshots and text copied from the lab website, as well as some additional explanation by your instructor.  After reading this entire manual you should be well-prepared for taking the lab quiz.

https://blackboard.strayer.edu/bbcswebdav/pid-32549532-dt-content-rid-179602740_1/xid-179602740_1

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