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Biology

video response

For this part, I just want you to give some thoughts and ideas who may have to solve this issue. You will get full points unless you write gibberish in the answer box. 

Towards the end of the video, certain socioeconomic factors are mentioned that may contribue to cancer health disparities. Express your thoughts on this issue, and explain and possible solutions you can think of to help alleviate this important issue. 

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Biology

Human appendix and Gene's Rate Evolution

The human appendix, a vestigal extension off the large intestine, is homologous to a structure called a caecum, generally larger than our appendix, and houses bacteria that aid in digesting cellulose, the main component of plants.

Explain how the presence of the appendix might be used to show our common ancestry with other mammals, and determine what it might tell us about the dietary history of humans. Provide an example with your response.

Geneticists compare DNA base sequences among organisms and from this data determine a gene’s rate of evolution. Different genes have been found to evolve at different rates.

 

Explain why some genes might have faster rates of evolution than other genes as populations adapt to their environments, and give an example with your explanation.

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Biology

BIOLOGY HELP

Lab: RNA

In this lab, you will learn about the types of RNA molecules and you will study the details of transcription and translation.

Objectives:

  Learn about the types of RNA molecules produced by cells.
  Study the details of transcription and translation.

Time Requirements:

This lab should take two hours to complete.

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Biology

Becoming Limitless Review

What will written goals do for you Remember the Harvard group This is important – because most people do not have an actual answer to the question ‘what is your goal’The hustle and bustle of our daily lives only seems to be ever increasing. We have more information bombarding us every second, weather it be from our computers, televisions, phones, or the people we interact with. There seems to be more pulling at our time with work, meetings, organizations, kid’s activities, school events, charitable drives, movies to view, places to visit, vacations to take, sights to see and a “To Do” list that will take seventy-five years or more to accomplish. With so many people and things pulling us in every direction, it is very easy to forget to make time for yourself. Time to relax, time to dream, time to plan, time for self-improvement, and time to just be you.

You need regular sleep to perform optimally. You must also make time for exercise. Sure, you can do this with others, just be sure to do it, and exercise where you are benefiting and becoming healthier. It’s also important to make room for quiet time each day. Time for you to dream or think about those things that are important to you. I also suggest learning some deep breathing exercises to perform during your quiet time, you’ll be amazed at what it will do for your health and outlook on the rest of your life.

You must make time to work on yourself. Personal development is important for all of us to grow and succeed. It’s easy to skip when you are too busy with everything else. If you want to learn a language, play an instrument, engage in artistic endeavors, you must make time for them. You must make time for reading each day or you’ll never get to those books that you “plan to read.” Chose activities that will enrich your life and make you feel better and then make time for them.

Make time for vacations. Getting away from the everyday grind helps recharge the internal batteries that keep us fresh and going. Mini-weekend vacations each month can do wonders. Longer vacations once a year are important. Individual and family relaxation time should be planned and guarded as much as any other activity, because it will make all other activities better.

Becoming Limitless Review- Unlock Your Potential To Become Limitless

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Biology

bio/101

 

What Is Life?

 

 

 

Part I: Media Relevancy

 

 

 

 

 

Within the Multimeda section of the University Library use the Science Online, Today’s Science, or World News Digest for this assignment.

 

 

 

Write a 100-200-word response to the following questions.   Include reference citations.

 

 

 Present the fundamental concept of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental concepts of chemistry affect biology.

 Describe the energy metabolism of cells. Include the link or reference citation for the piece and describe how it helped you better understand the energy metabolism of cells.

 

Compare the structures and functions of different cell types. Include the link or reference citation for the piece and describe how it helped you better compare structures and functions of different cell types.

 

 

 Describe one of these activities of science, the scientific method, creating hypotheses, or designing experiments. Include the link or reference citation for the piece and describe how it helped you better understand how the scientific method is used to create hypotheses and experiments.

 

 

 

Part II: Applying Science to Everyday Life

 

Recently, Earl attended a picnic at his daughter’s school. The picnic was a potluck, and the food was served outdoors. Contributions included hamburgers, hot dogs, baked beans, potato chips, potato salad, coleslaw, apple pie, and vanilla ice cream. Within 24 hours of the picnic, several attendees developed symptoms of food poisoning. Of the 50 people who attended the picnic, only 30 people became ill. Every person at the picnic ate something, but not every person had an opportunity to sample each item. Earl noticed that the potato salad he started to eat was warm. He also noticed that his hamburger was somewhat pink in the middle and not fully cooked. Earl wonders if eating the hamburgers or the potato salad could be responsible for making some attendees ill. Earl has begun to apply the scientific method to this common problem. Complete each of the following tasks in 200 to 300 words. 

 

 

 

How would the scientific method help Earl create an experiment to determine which food sources made people sick?

Describe the steps of the scientific method Earl utilized.

Describe the remaining steps Earl will use if he decides to use the scientific method to determine what made the people sick.

 

 

 

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Biology

NursingStats

CAN ANY OF YOU DO IT PERFECT ?

PLEASE CHECK CAREFULLY

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Biology

Analyze data

Need help working and analyze result. I already have the graphs ready. Just clarify and explain.

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Biology

biology lab

Instructions: Complete the following pre-lab activity prior to attending lab. You need to print and complete this document and turn it in by the beginning of lab on Thursday.

This week we will be using microscopes and professionally prepared/stained slides to identify the various stages of the cell cycle in onion root tip cells. We will differentiate between interphase (not specifically G1, S, and G2), prophase, metaphase, anaphase, and telophase/cytokinesis (lumped together). Our research questions are as follows:

Q1: Do onion cells spend the same proportions of time in interphase and mitosis as reported in the Integrating Concepts of Biology textbook for a “typical eukaryotic cell cycle” (See Table 3.5 in ICB)?

Q2: Does each stage of mitosis (i.e. prophase, metaphase, anaphase, and telophase/cytokinesis) require the same amount of time to complete?

It is important for you to understand that you will be using a slide that was prepared by taking a thin slice through an onion root tip (example image on right). All the cells were stained, and therefore killed, at the same time regardless of what stage of the cell cycle they were in. We will operate under the assumption that each cell divides whenever it is ready, and is therefore independent of what the cells around it are doing. Therefore, we can consider the cells seen in the slide to be a representative sample of all cells in the root tip. Under this assumption, we can estimate the proportion of time that cells in an onion root tip spend in a particular stage, based on the relative proportions of cells displaying any given stage at the moment the slide was prepared. For example, let’s assume that the cell cycle takes 24 hours (as it does Table 3.5 in ICB) and you are going to identify the stage of cell cycle for 24 cells on the slide. If 8 cells were in some stage of mitosis while 16 were in interphase, you might conclude that onion root tip cells spend 8 out of 24 hours undergoing mitosis, and 16 out of 24 hours in interphase.

Read the Chi-Square Test document so you understand how we can analyze data to answer the research questions listed above. Then, complete the questions below.

1.     Write at least two hypotheses (at least one per research question) that provides a tentative answer to each question above. Make sure the hypotheses have the necessary characteristics of being testable and falsifiable.

 

 

2.     Write a predictive statement (i.e. and if…then…statement) for each of your hypotheses from Question 1. These should be testable and should utilize information that you obtained from Table 3.5 in ICB, so that you can make a reasonably educated prediction.

 

 

 

 

3.     Describe an experimental design (e.g. a plan for the collection of empirical observations) that could be used to test each of your hypotheses.

 

 

 

 

 

4.     Identify the independent and dependent variables, and potential controls, for your experimental design.

 

 

 

 

5.     What values would you use for your expected values in a Chi-Squared Test of your experimental data collected according to question 3?

 

 

 

 

6.     Visit the page http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/cell_cycle.html to become familiar with the appearance of cells in each stage of the cell cycle. Complete the identification of 36 cells, then create a data table below and record the number of cells in each stage.

 

 

 

 

7.     Use a Chi-Square table to compare your values with expected values based on an assumption that cells spend equal time at each stage listed in the table below (this is probably a bad assumption, but will serve our purposes here). Is your distribution of virtual data significantly different than the expected distribution (i.e. equal time in each stage)? **Hint: If I expected an equal number of emails to arrive on each day of the week, and I got a total of 70 emails during the entire week, I should expect 10 emails to arrive each day. (If only I were so lucky to have that few emails each day!!)

 

Interphase

Prophase

Metaphase

Anaphase

Telophase

Observed  (o)   

 

 

 

 

 

Expected  (e)

 

 

 

 

 

Deviation  (o-e)

 

 

 

 

 

Deviation2  (d2)

 

 

 

 

 

(d2)/e

 

 

 

 

 

X2 = ?(o – e)2 / e =   

Degrees of Freedom=

X2 critical value=

Post-lab 4: DNA Fingerprinting II

Use your group’s gel electrophoresis data to draw conclusions about which suspects can or cannot be eliminated from the criminal investigation. Create a CSI Forensics Lab report that could be presented to detectives working the case. This report should present the relevant information in a clear and concise manner, written for a reasonably education layperson (e.g. they took a GE Bio class a decade ago) to understand. Break the report down into three main sections, each addressing one of the points listed below. Have fun with it!!

1.     What evidence did you observe and what evidence did you utilize?

2.     What analysis did you perform, on what gene, using what methods?

3.      A broad overview of methods is preferred…remember, for a layperson to understand. What mistakes or problems did you have during the procedure or analysis?

4.      These are incredibly important to include, and will not affect your grade negatively.

 

 

 

 

5.     What were the results?

6.      Include a photo of your gel, complete with labels and a key for the detectives to be able to understand what is displayed. If you had to use another groups gel to see discernable results, include a picture of that gel too . Include a description of the different genotypes for all suspects, and specifically any genotypes that matched the crime scene DNA sample.

 

Remember to be clear and concise. Use a maximum of two pages, double-spaced, 12 pt. font . Each group member must produce a unique, individual report, even though the gel image will be the same!

 

 

Categories
Biology

BIO TERM PAPER 102

This term paper is due in 7 hours (9:30am eastern time). It needs to be 3 pages on one of the suggested topics listed below. Please let me know your best rate and how soon you can have it completed.

 

 

Requirements:

1. The paper must be at least 3 pages (single spaced) in length and must be typed.

2. The information in your paper must include basic physiological information. Generalities are not sufficient.

3. At least two scientific references are required.

4. Summarize the information from your reference sources and write in your own words. Do NOT plagiarize by copying directly from your source.

5. You may use your General Biology textbook as one reference for your paper. You must supplement it with information from another scientific source. Only one General Biology text may be used; other references must be sources other than Biology texts.

Additional print reference sources must be books that would be found in the science section, not in a general interest section of the library, that is, they must be reliable scientific sources. Or you may use as your source a journal such as Scientific American or Natural History or any other science journal.

6. You may use one or more Internet sources, but that is in addition to the scientific source that you will select other than your textbook, that is, the Internet source will be a third reference.

7. The following sources are not acceptable as reference sources for your paper:

Newspapers
Popular magazines, such as Prevention, Vegetarian Times, Time, Reader’s Digest, Runner’s World
Pamphlets, or their equivalent on the internet
General encyclopedias, such as World Book. (Online Britannica is okay to use.)

Referencing information:
8. Your references must be properly cited in the body of the paper, using scientific reference type format (name-date, not page number). Directions for reference citation are found in the Appendix of the Study Guide/Lab Manual on page A-4.

Use Online reference guide for any further information that you need for your referencing. Under 8a, “Using CSE In-text Citation Style”, follow directions given in #2 The name-year system. The proper formats to use for listing the references that you found on the web can also be found on the CSE website

 

 

Suggested topics:

You are not limited to the topics listed here. If there is another topic which interests you and which you would like to explore further for a paper, please contact me for approval before you begin writing your paper. The units referred to here are from the study guide.

Unit 8.
a) The specific metabolic effects of and the dangers of misuse of anabolic steroids.
b) The role of the pineal gland in “winter blues.”
c) The discovery and functions of appetite control hormones ghrelin and leptin.

Unit 9.
a) The role of the bacteria, Helicobacter pylorii, in gastric ulcers.
b) The effects of cholesterol, high density lipoproteins (HDL’s), and low density lipoproteins (LDL’s) on health and well-being
c) Are any of the popular weight loss diets wise or effective? Explain why or why not.
d) Discuss the benefits and the dangers of genetically modified foods.
e) Discuss the structure, sources, and dangers of trans-fats in the diet. Should they be illegal?

Unit 10.
a) Describe specifically the effects of smoking on the respiratory system and on other parts of the body.
b) Cystic fibrosis. Explain what this disease is and how it affects the respiratory system.
c) Compare and contrast the bird’s respiratory system with that of a mammal.

Unit 11.
a) Roles of B and T lymphocytes in the immune response. Include an explanation of how vaccinations can protect you from infectious disease.
b) Describe what arteriosclerosis is and explain how it leads to cardiovascular disease.
c) Describe what counter-current blood flow is and explain its importance in at least three specific examples, e.g., fish gills and flamingo legs.

Unit 12.
a) Kidney dialysis. Describe briefly what it entails and when and why it is used.
b) Discuss the production of the hormones ADH and aldosterone and describe their roles in human osmoregulation.

Unit 13.
b) Describe the biological and physiological effects of two of these on the brain and the nervous system: alcohol, barbiturates, amphetamines, marijuana, cocaine.
c) What are phantom limbs and what causes this phenomenon?
d) What is the blood-brain barrier? How was it discovered? What is its function?

Unit 14.
a) Choose two of these sexually transmitted diseases and explain the effects and the possible long term consequences of the disease on the male and the female: genital warts, herpes, gonorrhea, chlamydial infection.
b) Explain the effect of a pregnant woman’s health and diet on the fetus.
c) Discuss the benefits of estrogen for women and the possible hazards that may be involved in taking estrogen supplements for women after menopause. (Note that this also includes removal of ovaries before menopause, resulting in surgical menopause.)

Unit 15.
a) Describe the composition of soil, including both the living and nonliving components. In your description, describe what kind of soil is best for most plants.
b) Describe transpiration, including its functions, its benefits for a plant, and its potential harmful effects, if any, for a plant.
c) Explain the process of vegetative propagation in plants and describe the practical uses of this process in agriculture, in fruit orchards, and in any other areas in which it is applicable.

Unit 16.
a) Describe the importance of plants in the ecosystem OTHER than their role as producers. This should include their role in soil holding, in the water cycle, in temperature, and in any other area in which they are involved.
b) Define and discuss bioremediation, stating its benefits over other types of environmental cleanup, and describe several examples of how this process has already been used.
c) Discuss the topic of global warming and describe steps that can be taken to avoid it. 

 

 

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Biology

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