7: CSI Wildlife, Case 1

SCIN 130 Lab 7: CSI Wildlife, Case 1
General Instructions
Be sure to read the general instructions from the Lessons portion of the class prior to completing this packet.

Remember, you are to upload this packet with your quiz for the week!

Background

The scenarios investigated are based on the recently published literature: Wasser, S. K., Brown, L., Mailand, C., Mondol, S., Clark, W., Laurie, C., & Weir, B. S. (2015). Genetic assignment of large seizures of elephant ivory reveals Africa’s major poaching hotspots. Science, 349(6243), 84–87. The underlying data are available on the Dryad Digital Repository: http://dx.doi.org/10.5061/dryad.435p4.

Remember, DNA is made up of nucleotides and an allele is an alternative form of a gene which may be from mutation, but is found on the same place in a chromosome in individuals and functions similarly. If you are unfamiliar with these terms, make sure to review them in your book prior to completing the lab.

Specific Lab Instructions

Name: Sarah Springle

Date:12/16/2020

Go to: CSI Wildlife on HHMI Biointeractive

Part 1: The Introduction

1. Read the instructions on the home page. Then, watch the opening video from the CSI Wildlife Introduction.

2. What is a keystone species?

SCIN 130 Lab 7: CSI Wildlife, Case 1

V1 04.2018 Felicetti

Page 2 of 9

3. Dr. Wasser states that approximately 50,000 African elephants are killed each year. According to the video, it is estimated that there are around 470,000 African elephants. If these numbers are correct, approximately what percentage of African elephants are killed each year? (Show your work.)

4. In one or two sentences, summarize Dr. Wasser’s research and how it is being used to conserve elephants.

Part 2: Case One

1. Watch the crime scene video on the first slide of Case One. Explain the goal of the case.

2. Look at the map provided; in what type of location are the majority of African elephants located?

3. Proceed to the How DNA Profiling Works section.

a.

b. What does “STR” stand for and how are they important for identification?

c. Look at the gel on the screen. What do the bands on the agarose gel represent?

d. What is the purpose of the DNA ladder on the agarose gel?

e. DNA profiling is also called DNA fingerprinting. A common misconception about DNA fingerprinting is that the analysis has to do with actual fingerprints. Explain one similarity and one difference between a human being’s pattern of bands on an electrophoresis gel and a human fingerprint.

4.

5. Click on Technique.

a. List three sources to obtain elephant DNA for analysis.

b. Watch the animation on the polymerase chain reaction under Technique. What is the purpose of heating the DNA strand? What is the purpose of cooling the DNA strand?

c. What is the relationship between the size of a DNA fragment and the distance it migrates in the gel?

d. Why does DNA migrate to the positive electrode?

e. Run the gel in the Technique section by pressing the Start button. Which elephant (left or right) has both the largest and smallest fragments?       Approximately what size is the largest fragment (bp)?       Smallest?      .

6. Proceed to the Application section and look at the gel.

a. For Marker C, are the two elephants in the gel on the left homozygous or heterozygous? How do you know?

7. Read the Review section, and make sure you can answer the questions.

8.

9. Go to Finding a Match

a. Click on the “+” next to each marker. Compare the bands in the agarose gel from the unidentified elephant and the known elephants. Which elephant (there are two pages of them) matches the unidentified elephant?

10. Watch the video on the “Case Solved” slide.

a.

b. Name two properties of a good marker and explain why good markers are important.

Adapted from: Click and Learn “CSI Wildlife” (2016). CSI Wildlife Explorer Worksheet. HHMI Biointeractive Teaching Materials.

 
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Microbiology 200

Microbiology On Line Lecture

Assignments to Chapter 10

Infectious Diseases on Skin

Dr. I. Iliev

 

I. DISEASE AT GLANCE: Cutaneous Anthrax: Provide full information to following:

Causative Agent:

Virulence Factors:

Portal of Entry:

Signs and Symptoms:

Incubation Period:

Susceptibility:

Treatment:

Prevention:

 

II. CLINICAL CASE STUDY: A Painful Rush. Please answer to your best all questions ate the end of this case.

A mother brings her 3 year old daughter to pediatrician describing that the girl has fever and chills for 3 days. The girl also has a large, intensely red patch with a distinct margin on her leg and a nearly swollen lymph node. When the nurse, and later the physician touches the area it is firm and warm, and the girl screams in pain. Based on these observations, doctor makes a presumptive diagnosis and begin treatment.

1. Is it necessary to confirm the diagnosis with lab test? Why or why not?

2. What was the diagnosis? Treatment?

3. How is this case different from impetigo?

4. What is the agent causing this girl’s condition?

5. How may the girl have contracted the condition?

6. What component(s) of the agent stimulated the fever and the lesion?

7. Why is important for doctor to begin immediate treatment?

 

III. What do we know about Chickenpox and Shingles? Is it viral or bacterial disease? Provide details for the following: cause; virulence factors, portal entry, signs and symptoms, incubation period, treatment and prevention.

 

IV. CRITICAL THINKING: A week after spending their vacation rafting down Colorado River, all five members of Jones family developed cold sores on their lips. At the local hospital doctor told them that the lesions were caused by a herpesvirus. Both Mr. and Mrs. Jones were stunned: Isn’t true that herpes is a sexually transmitted disease (STD)? How could it have affected their young children?

 
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SCI 115 Quiz 9

IMPORTANT: AFTER PURCHASE, LOG IN TO YOUR ACCOUNT AND SCROLL DOWN BELOW THIS PAGE TO DOWNLOAD FILES WITH ANSWERS.

Version 1

1. Which of the following is a disadvantage of an exoskeleton?

2. Which of the following animals do NOT have tissues?

3. Which of the following organisms have an exoskeleton?

4. Tetrapods are the direct descendants of

5. In amphibians, what function does the cloaca serve?

6. This vertebrate is a fish, has a cartilaginous skeleton, no jaws, and a tooth-covered tongue. This animal is a

7. The number of individuals of the same species in some specified area or volume of habitat is the

8. The most common type of population distribution is

9. A change in a population that is NOT related strictly to the size of the population is best described as

10. Which of the following models of growth takes place when the amount of available resources is not limiting?

11. Jellyfish are as likely to die at one age as any other. Thus, a type ___ survivorship curve characterizes their life history.

12. What invention about 11,000 years ago led to a boom in the human population?

Version 2

1. This animal has radial symmetry, a gastrovascular cavity, and the same opening is for the entry of food and expulsion of waste. It is ___.

2. Which of the following are characterized by radially symmetrical members?

3. Sponges are

4. This animal is a tetrapod that has a cloaca, aquatic larvae, and is tailless as an adult. This animal is

5. Amniotes differ from amphibians by

6. This vertebrate is a fish, has a cartilaginous skeleton, no jaws, and a tooth-covered tongue. This animal is a

7. The most common type of population distribution is

8. The number of individuals that make up a population gene pool is the

9. Which of the following factors is NOT a density-independent factor?

10. A change in a population that is NOT related strictly to the size of the population is best described as

11. Most octopuses die early in life; those that survive can live up to 5 years. Octopuses are best characterized by a type __ survivorship curve.

12. What invention about 11,000 years ago led to a boom in the human population?

 
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Gogo

If Only I Had a System …This will be your opportunity to be the teacher. Click on “View Full Description and attachments” below for the directions and questions. Be sure to open the file that says “MATH110 Read This First” before you jump in!View Full Description and Attachment(s)Start with the attached files. First read the one entitled “READ THIS FIRST” and then open the file called “Systems of Equations Problems with Answers”. It is difficult to learn how to do story problems because there are so many different types. If you want to do well on this week’s test, FOLLOW THESE INSTRUCTIONS! 1) Go through ALL the story problems provided and try to solve them. Pretend it’s a Practice Test. Check your answers with the key provided. 2) Pick ONE of the problems that you got right (that has not already been solved by a classmate), and demonstrate its solution for the rest of us. 3) Study how your classmates solved the problems that you missed. Remember that these may be on the test!

To demonstrate your problem, select Start a New Conversation and make BOTH the problem number and topic (#10 Jarod and the Bunnies) the subject of your post.

Begin your post with a statement of the problem so that we can understand what you are doing.
The answers are at the end of the file, so don’t just give an answer—we can already see what the answers are. Don’t post an explanation unless your answer matches the correct one!

Your goal should be to explain this problem so well that a classmate who “just doesn’t get it” will be able to understand it completely!
This is a moderated forum. Your posting will say PENDING and will not be visible to the rest of the class until I approve it. Occasionally, more than one person will tackle a problem before they can see the work of others. In that case, credit will be given to all posters. Once the solution to a problem has become visible, that problem is off limits and you will need to choose a different problem in order to get credit.
I will indicate in the grading comments if corrections need to be made. If you haven’t received credit, first double-check for my comments in the gradebook. If everything looks OK, then message me asking me to check on it.
You must make the necessary corrections and have your work posted in order to receive credit.
For this particular Forum, no responses are required – your initial post is worth the full 10 points. Should you choose to respond to a classmate, a request for clarification on the procedure used, a suggestion for an alternate method of solving the problem or a general comment about the technique would all be appropriate. I’m sure that a “thank you” for an exceptionally clear explanation would also be welcome!

Please sign ALL your Forum posts with the name that you like to be called – it makes it so much easier for the rest of us to address you by your preferred name when we respond.

Initial Post Due: Tuesday, by 11:55 p.m., ET

Systems+of+Equations+with+Answers.pdfMATH110 Read This First.pdf

Systems of Equations

1) A vendor sells hot dogs and bags of potato chips. A customer buys 4 hot dogs and 5 bags of potato chips for $12.00. Another customer buys 3 hot dogs and 4 bags of potato chips for $9.25. Find the cost of each item.

1)

2) University Theater sold 556 tickets for a play. Tickets cost $22 per adult and $12 per senior citizen. If total receipts were $8492, how many senior citizen tickets were sold?

2)

3) A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 4 soft drinks for $36.12. The second group bought 6 slices of pizza and 6 soft drinks for $31.74. How much does one slice of pizza cost?

3)

4) Tina Thompson scored 34 points in a recent basketball game without making any 3-point shots. She scored 23 times, making several free

throws worth 1 point each and several field goals worth two points each. How many free throws did she make? How many 2-point field goals did

she make?

4)

5) Julio has found that his new car gets 36 miles per gallon on the highway and 31 miles per gallon in the city. He recently drove 397 miles on 12 gallons of gasoline. How many miles did he drive on the highway? How many miles did he drive in the city?

5)

6) A textile company has specific dyeing and drying times for its different cloths. A roll of Cloth A requires 65 minutes of dyeing time and 50 minutes of drying time. A roll of Cloth B requires 55 minutes of dyeing time and 30 minutes of drying time. The production division allocates 2440 minutes of dyeing time and 1680 minutes of drying time for the week. How many rolls of each cloth can be dyed and dried?

6)

7) A bank teller has 54 $5 and $20 bills in her cash drawer. The value of the bills is $780. How many $5 bills are there?

7)

8) Jamil always throws loose change into a pencil holder on his desk and takes it out every two weeks. This time it is all nickels and dimes. There are 2 times as many dimes as nickels, and the value of the dimes is $1.65 more than the value of the nickels. How many nickels and dimes does Jamil have?

8)

9) A flat rectangular piece of aluminum has a perimeter of 60 inches. The length is 14 inches longer than the width. Find the width.

9)

1

 

 

10) Jarod is having a problem with rabbits getting into his vegetable garden, so he decides to fence it in. The length of the garden is 8 feet more than 3 times the width. He needs 64 feet of fencing to do the job. Find the length and width of the garden.

10)

11) Two angles are supplementary if the sum of their measures is 180°. The measure of the first angle is 18° less than two times the second angle. Find the measure of each angle.

11)

12) The three angles in a triangle always add up to 180°. If one angle in a triangle is 72° and the second is 2 times the third, what are the three angles?

12)

13) An isosceles triangle is one in which two of the sides are congruent. The perimeter of an isosceles triangle is 21 mm. If the length of the congruent sides is 3 times the length of the third side, find the dimensions of the triangle.

13)

14) A chemist needs 130 milliliters of a 57% solution but has only 33% and 85% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.

14)

15) Two lines that are not parallel are shown. Suppose that the measure of angle 1 is (3x + 2y)°, the measure of angle 2 is 9y°, and the measure of

angle 3 is (x + y)°. Find x and y.

15)

16) The manager of a bulk foods establishment sells a trail mix for $8 per pound and premium cashews for $15 per pound. The manager wishes to make a 35-pound trail mix-cashew mixture that will sell for $14 per

pound. How many pounds of each should be used?

16)

17) A college student earned $7300 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 7% and the rest at 6%. If the student received a total of $458 in interest at the end of the year, how much was invested at 7%?

17)

2

 

 

18) A retired couple has $160,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 6%. The rest they want to invest in AA bonds yielding 11% per year. How much should they invest in each to realize exactly $15,600 per year?

18)

19) A certain aircraft can fly 1330 miles with the wind in 5 hours and travel the same distance against the wind in 7 hours. What is the speed of the wind?

19)

20) Julie and Eric row their boat (at a constant speed) 40 miles downstream for 4 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 10 hours. Find the rate of the current.

20)

21) Khang and Hector live 88 miles apart in southeastern Missouri. They decide to bicycle towards each other and meet somewhere in between. Hector’s rate of speed is 60% of Khang’s. They start out at the same time and meet 5 hours later. Find Hector’s rate of speed.

21)

22) Devon purchased tickets to an air show for 9 adults and 2 children. The total cost was $252. The cost of a child’s ticket was $6 less than the cost of an adult’s ticket. Find the price of an adult’s ticket and a child’s ticket.

22)

23) On a buying trip in Los Angeles, Rosaria Perez ordered 120 pieces of jewelry: a number of bracelets at $8 each and a number of necklaces at $11 each. She wrote a check for $1140 to pay for the order. How many bracelets and how many necklaces did Rosaria purchase?

23)

24) Natasha rides her bike (at a constant speed) for 4 hours, helped by a wind of 3 miles per hour. Pedaling at the same rate, the trip back against the wind takes 10 hours. Find find the total round trip distance she traveled.

24)

25) A barge takes 4 hours to move (at a constant rate) downstream for 40 miles, helped by a current of 3 miles per hour. If the barge’s engines are set at the same pace, find the time of its return trip against the current.

25)

26) Doreen and Irena plan to leave their houses at the same time, roller blade towards each other, and meet for lunch after 2 hours on the road. Doreen can maintain a speed of 2 miles per hour, which is 40% of Irena’s speed. If they meet exactly as planned, what is the distance between their houses?

26)

3

 

 

27) Dmitri needs 7 liters of a 36% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 56% solution and the other an unlimited supply of the 21% solution. How many liters of each solution should Dmitri use?

27)

28) Chandra has 2 liters of a 30% solution of sodium hydroxide in a container. What is the amount and concentration of sodium hydroxide solution she must add to this in order to end up with 6 liters of 46% solution?

28)

29) Jimmy is a partner in an Internet-based coffee supplier. The company

offers gourmet coffee beans for $12 per pound and regular coffee beans for $6 per pound. Jimmy is creating a medium-price product that will

sell for $8 per pound. The first thing to go into the mixing bin was 10 pounds of the gourmet beans. How many pounds of the less expensive regular beans should be added?

29)

30) During the 1998-1999 Little League season, the Tigers played 57 games.

They lost 21 more games than they won. How many games did they win that season?

30)

31) The perimeter of a rectangle is 48 m. If the width were doubled and the length were increased by 24 m, the perimeter would be 112 m. What are the length and width of the rectangle?

31)

32) The perimeter of a triangle is 46 cm. The triangle is isosceles now, but if its base were lengthened by 4 cm and each leg were shortened by 7 cm, it would be equilateral. Find the length of the base of the original triangle.

32)

33) The side of an equilateral triangle is 8 inches shorter than the side of a square. The perimeter of the square is 46 inches more than the perimeter of the triangle. Find the length of a side of the square.

33)

34) The side of an equilateral triangle is 2 inches shorter than the side of a square. The perimeter of the square is 30 inches more than the perimeter of the triangle. Find the length of a side of the triangle.

34)

4

 

 

Answer Key Testname: SYSTEMS_OF_EQUATIONS

1) $1.75 for a hot dog; $1.00 for a bag of potato chips 2) 374 senior citizen tickets 3) $3.74 per slice of pizza 4) 12 free throws, 11 field goals 5) 180 miles on the highway, 217 miles in the city 6) 24 rolls of Cloth A, 16 rolls of Cloth B 7) 20 $5 bills 8) 11 nickels and 22 dimes 9) 8 inches

10) length: 26 feet; width: 6 feet 11) first angle = 114°

second angle = 66°

12) 72°, 72°, 36° 13) 3 mm, 9 mm, 9 mm 14) 70 mL of 33%; 60 mL of 85%

15) x = 288 7

, y = 36 7

16) 5 pounds of trail mix 30 pounds of cashews

17) $2000 18) $120,000 at 11% and $40,000 at 6% 19) 38 mph 20) 3 mph 21) 6.6 mph 22) adult’s ticket: $24; child’s ticket: $18 23) 60 bracelets and 60 necklaces 24) 80 mi 25) 10 hr 26) 14 mi 27) 56% solution: 3 L; 21% solution: 4 L 28) 4 L of 54% solution 29) 20 lb 30) 18 games 31) Length: 16 m; width: 8 m 32) 8 cm 33) 22 inches 34) 22 inches

5

 
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