Do you agree or disagree that the controversy around CRISPR is similar to the controversy around cloning decades ago?

CRISPR, Clustered Regularly Interspaced Short Palindromic Repeats, is the transformative gene editing tool that has made significant progress in the last several years.
Instructions
Watch the Ted Talk – “How CRISPR lets us edit our DNA” and “What is CRISPR?” with background information on CRISPR and information about the latest developments. As you are watching, think about how you will answer the following questions:
⦁ Explain in your own words exactly how CRISPR works.
⦁ Do you agree or disagree that the controversy around CRISPR is similar to the controversy around cloning decades ago?
⦁ What is the Cas9 RNA base sequence that would attach the CRISPR complex to the following segment of DNA?

Differentiate the functional roles of acids, bases, and buffers.Describe the structure and function of water and its role in living systems.

Select twc of the unit student learning outcome  prompts below to respond to in this week’s discussion.
Identify the atom and its components.

2. Differentiate between elements and compounds formed by ionic or covalent bonds. 3. Differentiate the types of chemical reactions and associated terminology.

4. Describe the structure and function of water and its role in living systems.

5. Differentiate the functional roles of acids, bases, and buffers.

6. Differentiate the structures and functions of major organic molecules.

Could you foresee difficulty in quantitative analysis of your unknown ion in aqueous solution or ions by weighing the precipitate? Explain why or why not in quantitative terms.

For this section it is helpful to think of the assumptions that were made in the lab and how your data would be affected if those assumptions were not completely true.

Answer to Questions

Depending on the lab, there might be both Pre and Post lab questions along with Activity questions, which will all be found in the Lab Questions document. All of these questions must be answered for full credit on the lab report.
Be sure to completely answer and explain all the questions and include complete calculations for any questions that require calculations.  feel free to ask questions in our discussion forums as you work through them.
Examples:

Which of the group I chlorides has the lowest molar solubility? What is its solubility in moles/L?

Answer this fully and give your reasoning/explanation for your answer

Could you foresee difficulty in quantitative analysis of your unknown ion in aqueous solution or ions by weighing the precipitate? Explain why or why not in quantitative terms

Why do you think Solvent 2 produced more visible bands of pigments? Were the pigments observed using Solvent 1 different from the pigments you observed using Solvent 2? Explain your answer.

Thin Layer Chromatology Lab 6

Insert the photo of the TLC plate from Activity 1.

The following should be visible in this photo:
All bands on the plate, with each marked in the center with a pencil and numbered

Insert the photo of the TLC plate from Activity 2.

The following should be visible in this photo:
All bands on the plate, with each marked in the center with a pencil and numbered

Why do you think Solvent 2 produced more visible bands of pigments?

Were the pigments observed using Solvent 1 different from the pigments you observed using Solvent 2? Explain your answer.

Describe and discuss the spectrophotometric assay of paracetamol. The collected data must be presented, analysed, and interpreted.

Spectrophotometric Assay of Paracetamol
You are required to write a lab report based on results obtained from this experiment. The lab report will describe and discuss the spectrophotometric assay of paracetamol. The collected data must be presented, analysed, and interpreted. The lab report is followed by a few calculation questions which you need to answer and provide an explanation for your solution.

Describe how you can determine the total change in enthalpy and activation energy from the diagram, and if each is positive or negative.

Describe how you can determine the total change in enthalpy and activation energy from the diagram, and if each is positive or negative.

Describe how the curve will look if the reaction was exothermic. Be sure to mention changes in the potential energies of the reactants and products and the sign changes of the enthalpy.

During an experiment, ice and water were placed in a perfectly insulated thermos flask at 0 °C. Describe this system when it phase reaches equilibrium.

Explain how the solubility of water is useful in maintaining various life processes.

List three examples of physical changes and three examples of chemical changes. Explain why these are chemical or physical changes.

Exploring physical and chemical changes 

Pre-Laboratory Questions
Explain the difference between a chemical change and a physical change.

List three examples of physical changes and three examples of chemical changes. Explain why these are chemical or physical changes.

Laboratory Questions
In the following scenarios, tell whether the change being described is a physical or a chemical change, and explain the reasoning behind your answer.

A carbonated beverage container is opened, producing a fizzing sound and carbon dioxide bubbles.

Dry ice is taken from a freezer and placed in an ice bucket at room temperature. With time, the block decreases in size and is surrounded by a visible cloud.

A pastry chef adds a mixture of white vinegar  and baking soda  to the batter for a red velvet cake to create bubbles that make the cake rise.

A shiny, silvery iron nail turns reddish-brown when left exposed to the weather.

A chemical heat pack is manufactured by sealing water  and calcium chloride (in separate compartments of a container. When the two components are mixed, the CaCl2 dissolves in the water, producing a large amount of heat.

Demonstrate an understanding of safe working practice through experimental work, including the selection of appropriate methods.

Calculating the concentration of an acid

On successful completion of this assessment, you will have met the following module learning outcomes:

Knowledge Based Outcomes

Demonstrate an understanding of safe working practice through experimental work, including the selection of appropriate methods.
Record, interpret and analyse experimental investigations in relation to an original hypothesis and make suitable recommendations for enhancing future work.

Put the appropriate content in the appropriate section. If a question asks something that should be covered in the lab report like “what are the main calculations in this experiment?

Measurement and Uncertainty

LAB REPORT WRITING GUIDE
A guide to writing formal lab reports with the correct content and formatting for each required section.

WRITING YOUR REPORTS
Tips for Success
Break your report into the appropriate sections and label them with the headings: Purpose, Experiment, Data and Observations, Calculations, Conclusions, Lab Question Answers, and References.
Put the appropriate content in the appropriate section. If a question asks something that should be covered in the lab report like “what are the main calculations in this experiment?”, address the question in the Calculations section of the report and then in answer to the question, write “See Calculations section above.” Then you do not have to register it twice, which is in the report’s proper section.

Describe the role of intermolecular forces in electronic and molecular shapes. How does the presence of lone  electrons change the electronic shape in the formation of the molecular shape?

To receive full credit for this assignment, you must post a comment by 6/24 and respond to a classmate’s post by the due date: 7/1. You must post your initial post to be able to read those of other students.
To access: Click on “Discussions” on the left menu of the Home Page and click on the Then start a thread.

Participate and as always be informative, respectful, and tactful in your comments. You cannot see posts from others until you post your initial thread! Here is the Discussion Rubric: Discussion Rubric
Describe the role of intermolecular forces in electronic and molecular shapes. How does the presence of lone  electrons change the electronic shape in the formation of the molecular shape? Be sure to cite specific examples of this phenomenon on molecules from the VSEPR section of the text, Bb Lab and/or Worksheet.