Refsum Disease Presentation

/in /by

I need support with this Biology question so I can learn better.

 

a presentation ( powerpoint ) 20 minutes worth talking presentation about Refsum’s disease

please FOLLOW attached instructions and rubric

I need under each slide explantion of the slide.

let me know if you need any clarification

Pharmacological Reactivation Term Discussion

/in /by

Help me study for my Biology class. I’m stuck and don’t understand.

 

homework due october 15 – article

term paper due october 22 – word doc highlighted blue –

 

Osmosis Scenarios & Cell Membrane Environment Hypertonic or Hypotonic Discussion

/in /by

I’m studying for my Biology class and need an explanation.

 

1. A red blood cell (0.9% NaCl) is placed into a solution of 20% NaCl. The water is able to mov through the cell membrane, what happens to the red blood cell in this situation? Is this environment (outside solution) that the cell was placed into hypertonic or hypotonic?

2. A red blood cell (0.9% NaCl) is placed into a solution of 100% DI water. The membrane is again permeable to water. What happens to the cell in this situation? Is this environment (outside solution) hypertonic or hypotonic?

3. A plant cell (0.9% NaCl) is placed into a solution of 20% NaCl, the membrane is permeable to water. What happens to the plant cell?

4. A plant cell (0.9% NaCl) is placed into a solution of 100% DI water, the membrane is permeable to water. What happens to the plant cell?

5 A dialysis bag (simulating a membrane) of 15% glucose is placed in a beaker of 5% glucose. The bag is permeable to both water and glucose.

A. What is the net movement of water?

B. What is the net movement of glucose?

C. Which solution in this situation s hypertonic and which is hypotonic?

Impact of Elevation on The Size of The Tress Analysis

/in /by

Can you help me understand this Biology question?

 

At least 3 reference. Just follow the rubric and use upload infor to write it…

 

Genetic Screening Phenotype and Genotype Lab Report

/in /by

Help me study for my Biology class. I’m stuck and don’t understand.

 

Fill out the document attached and do the lab. make sure to upload photo in docmuemnt. , you will perform genetic screening of chromosomes through karyotyping. You will karyotype two sets of chromosomes to determine if the genotype of the chromosomes results in a genetic disease with a specific phenotype.

 

 

Procedure

Part 1: Karyotyping

  1. Review the idiograms (photograph or drawing of chromosomes) shown in Figure 5.

 

The image shows the idiograms depicts the human chromosomes 1 through 22 decreasing in size and X and Y on bottom right with X being bigger then Y. Image copyright Alila Soa Mai, 2013. Used under license from Shutterstock.com.
Figure 5.Idiograms of the human chromosomes.

 

  1. Print a copy of the “Possible Chromosomal Disorder #1” (also shown in Figure 6). Use scissors to cut out each of the chromosomes.

Observing Genotypes & Phenotype Hypothetical Genetic Traits Lab Report

/in /by

I’m working on a Biology question and need guidance to help me study.

 

do the lab and fill out the document attached with this question.

 

Procedure

Part 1: Determining Your Phenotype

Data Table 1 contains a series of genotypes and phenotypes for a variety of hypothetical genetic traits. The genotype and phenotype for “Parent 1” are provided in Data Table 1. For each of the traits in Data Table 1, determine your phenotype and possible genotype(s).

Note: If you have a dominant phenotype, you may have either a recessive allele and a dominant allele, such as “Aa,” or two dominant alleles, such as “AA.” If your phenotype is recessive, your genotype is always homozygous recessive such as “aa.”

  1. Use the mirror to determine if you have a dimpled chin.
  2. Record either “Dimpled Chin” or “No Dimples” under “Phenotype & Genotype(s) from Parent 2” in the “Dimpled Chin” row.
  3. If you have a dimpled chin, record “Dd” and “DD” under “Phenotype & Genotype(s) from Parent 2” in the “Dimpled Chin” row to represent the 2 possible genotypes for your observed dominant phenotype.
  4. If you do not have a dimpled chin, record “dd” under “Phenotype & Genotype(s) from Parent 2” in the “Dimpled Chin” row to represent the 1 possible genotype for your observed recessive phenotype.
  5. Repeat steps 1 – 4 for the remaining 9 traits in Data Table 1.

Note: For the PTC test, place the PTC strip on your moist tongue and determine whether or not you can taste the chemical.

Part 2: Determine the “Offspring”

  1. Draw a Punnett square to show both the genotype and phenotype ratios possible for the “Dimpled Chin” trait.
    1. Draw 1-2 Punnett squares on a sheet of paper. Place alleles in the in the Punnett square(s) to fill in the offspring, as shown in the example template below. The example template shown below is for “Dimpled Chin.”Take a photo of the completed Punnett square(s) and upload the image into Punnett Square 1. Be sure to include your name and the date in the drawing.

Note: If you have a dominant phenotype then you will create two Punnett squares, if you have a recessive phenotype then you will create one Punnett square.

 

A Punnett square. The top of the square is labeled Parent 1 (Dd), the left side of the square is labeled Parent 2 (dd). Top columns are labeled D and d. Rows are labeled d and d. The top left quadrant is Dd, top right quadrant is dd, lower left quadrant is Dd, and the lower right quadrant is dd.

 

    2. Record the possible offspring genotype(s), percent of phenotype, and genotypic ratio in Data Table 1 under the “Offspring” column.
  1. Repeat step 6 for the remaining 9 traits in Data Table 1. Upload the images into Punnett Square 2 – 10. When the exercise is finished, you will have created 10 to 20 different Punnett squares.

Note: All Punnett squares, for all 10 traits, need to be included in your report,

Analysis of Coral Growth Lab Report

/in /by

I’m stuck on a Biology question and need an explanation.

 

Read pages 184-185 in your lab manual.

Create an Excel file with the data in the lab manual for the four treatment temperatures: 26°C, 28°C, 30°C, and 26-30°C fluctuation. Proofread the data you enter to avoid typos. The screenshot on page 185 gives an example of what the data will look like in the spreadsheet.

Calculate the means, standard deviations, sample sizes, and standard errors for each temperature. Make a graph.

Remember to add custom error bars to your graph and delete the chart title and gridlines.

Then, please answer the following questions in a textbox in your spreadsheet next to your data/graph:

    1. What is the average of coral growth at each of the four temperature categories?
    2. Remember that the average water temperature of the coral’s natural habitat is 28 °C. What would happen if global climate change causes the average seawater temperature to increase to 30°C?

Please upload your assignment as an Excel file.

 

Advantages of Using Non Human Primates as Medical Test Subjects Essay

/in /by

I’m studying for my Biology class and don’t understand how to answer this. Can you help me study?

 

Write a 5 – 8 page essay that includes:

Essay is 5 – 8 pages in length, typed, double-spaced with one-inch margins and 12-point font

Information is presented in your own words, with in-text citations and a Works Cited section in APA format to identify the original sources. Your Works Cited section is NOT counted as part of the 4 – 5- page length requirement.

At least 4 sources of information are cited in your essay and identified in a Works Cited section. At least 2 of these sources must be academic literature (i.e. articles in peer-reviewed academic journals), and no more than 2 should be popular sources (i.e. websites, video clips, magazine and newspaper articles). You may include any of the relevant class readings as part of your 4 required sources.

  1. A summary of at least two advantages and two disadvantages of using non-human primates as medical test subjects, based on your review of the relevant scientific literature (about 1 – 2 pages in length);
  2. . A discussion of at least two lines of scientific evidence used to support primate medical testing, and at least two lines of scientific evidence used to condemn the practice (about 2 – 3 pages in length);
  3. An argument for or against primate medical testing, based on your evaluation of the supporting scientific evidence (about 2 pages in length).

 

PCC Advantages of Using Non Human Primates as Medical Test Subjects Essay
a57ae72a16602ec0bd0eb270fcfaeb.png

Darwinian Snails Lab Report

/in /by

I’m studying and need help with a Biology question to help me learn.

 

NO PLAGIARISM!! Must be typed and sent in a word document. The attachment is below.

You will need to download Simutext in order to do this lab. I will give you the email and password after you download the simutext!

the link to download it:

  1. https://www.simutext.com/student/register.html#/key/UfAH-gXZv-qkRX-j6KD-R4qy
  2. SimUText Student Portal (https://www.simutext.com/student/)

The next two labs (#5 and #6) are slightly different than prior labs so I wanted to explain them here. Both labs use the SAME SimUText simulation named Darwinian Snails. It’s been broken into two parts. The first part focuses on Darwinian evolution (in other words, natural selection). The second part focuses on non-Darwinian evolution (genetic drift and neutral mutations, plus a section on experimental design).

Each lab has it’s own workbook (and Dropbox to upload it to) and its own quiz! (You should ignore the workbook on the SimUText lab, and you can ignore the “graded questions” for the SimUText lab.

You need to do exactly what the attachments say below and fill out everything it says to do.

Ive had trouble already so i need someone to actually do it and not waste my time.

DNA Coding Strand Question

/in /by

I need an explanation for this Biology question to help me study.

 

This week’s homework is just one problem but it has three separate steps. This homework serves to help you grasp transcription and translation.

Below is a random DNA template strand.

3′ – TACTTAGTTGATCCTATC – 5′

1) Using the above template strand, create the DNA coding strand and label the correct “prime” (5′ or 3′) ends of the DNA coding strand.

2) After creating the coding strand, create a single-stranded mRNA molecule (you need to decide if you use the template strand or coding strand to create mRNA – refer to the lecture called “Transcription” if you’re stuck). Label the correct “prime” (5′ or 3′) ends of the single-stranded mRNA molecule you made.

3) Using google, find an mRNA codon chart (they’re all the same) and translate the mRNA molecule you made into a series of amino acids.

You can upload your homework as a picture or .doc/.pdf like past homework. Clearly label each step with its number in the problem above (number the coding strand you make as number 1, the mRNA strand you make as number 2, etc.).