Mitosis and Meiosis

Access Code (located on the lid of your lab kit):

Pre-Lab Questions

Don't use plagiarized sources. Get Your Custom Essay on
Mitosis and Meiosis
From $10/Page
Order Essay

”1. What are chromosomes made of?”

”2. Compare and contrast mitosis and meiosis. ”

”3. Cancer is a disease related to uncontrolled cell division. Investigate two known causes for these rapidly dividing cells and use this knowledge to invent a drug that would inhibit the growth of cancer cells. ”

Experiment 1: Observation of Mitosis in a Plant Cell

Table 1: Mitosis Predictions


Duplication of original cell and its contents

Supporting Evidence

A single cell undergoes division to form two cells each with its own cell contents

Table 2: Mitosis Data

Chosen Image



Number of Cells in Stage

Total Number of Cells

Calculated % of Time Spent in Stage

























Table 3: Stage Drawings

Cell Stage

Drawing REMEMBER: Your drawings should have your name and access code handwritten in the background.







Post-Lab Questions

”1. Label the arrows in the slide image below with the appropriate stage of the cell cycle. ”

A- prophase

B- anaphase

C- metaphase

D- interphase

E- telophase

F- anaphase


”2. What stage were most of the onion root tip cells in? Why does this make sense? ”

Telophase. Most onion cells are rapidly dividing

”3. As a cell grows, what happens to its surface area : volume ratio? (Think of a balloon being blown up). How is this changing ratio related to cell division? ”

The surface area to volume ration decreases as cell division increases the size of the cell

”4. What is the function of mitosis in a cell that is about to divide? ”

To enable the chromosomal contents divide

”5. What would happen if mitosis were uncontrolled? ”

It would lead to uncontrolled growth

”6. How accurate were your time predictions for each stage of the cell cycle? ”

Very accurate

”7. Discuss one observation that you found interesting while looking at the onion root tip cells.”

The onion cells take considerably shorter time to undergo mitosis

Experiment 2: Tracking Chromosomes Through Mitosis

Once you have completed the digital exercise, select the “Results Table” button at the bottom right-hand corner of the screen and select the “Generate PDF” button at the top of the following screen. Insert your download into this document by selecting the Insert > Object > Text from file. Resize if necessary.

Post-Lab Questions

1. How many chromosomes were present before mitosis?


1. How many chromosomes did each of the daughter cells contain after mitosis?


1. Cite an example of a type of cell that undergoes mitosis. Why is it important for each daughter cell to contain information identical to the parent cell?

Human stem cells. To preserve genetic composition

1. Human skin cells divide at a higher rate than neurons (nerve cells). Hypothesize why this may be.

Due to the presence of chromosomes

1. Hypothesize what would happen if the sister chromatids did not split equally during anaphase of mitosis.

It may lead to abnormally large cells

Experiment 3: Following Chromosomal DNA Movement through Meiosis

Part 1: Once you have completed the digital exercise, select the “Results Table” button at the bottom right-hand corner of the screen and select the “Generate PDF” button at the top of the following screen. Insert your download into this document by selecting the Insert > Object > Text from file. Resize if necessary.

Parts 2, 3, and 4: Once you have completed the digital exercise, select the “View Data Table” button at the bottom left-hand corner of the home screen. Review your table. If you would like to make any changes, select the “Return” button in the bottom right-hand corner. If you are satisfied with your answers, select the “Generate PDF” button at the top of the screen. Insert screenshots below. Resize if necessary:

Post-Lab Questions

How did crossing over affect the genetic content in the gametes? Use your results to support your answer.

Crossing over ensures that daughter cells have equal genetic make up

What is the ploidy of the daughter cells at the end of meiosis I? What about at the end of meiosis II?

Diploid. At the end of meiosis II the daughter cells become haploid

List two differences between meiosis I and meiosis II.

In meiosis I homologous chromosomes are separated while in meiosis II sister chromatids separate. Meiosis I produce 2 diploid daughter cells while meiosis II produce 4 haploid daughter cells.

Based on your observations in the digital exercise, what can you conclude about the severity of nondisjunction that occurs in meiosis I as opposed to meiosis II?

It can lead to chromosomal abnormality

Why is it necessary to reduce the number of chromosomes in gametes, but not in other cells?

Because of the fusion of gametes which will restore chromosomal number

Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: ”

”Sperm Cell: ” 22

”Egg Cell: ” 22

”Daughter Cell from Mitosis: ” 44

”Daughter Cell from Meiosis II: ” 22

Experiment 4: The Importance of Cell Cycle Control


1. avoid chromosomal disconnection 2. Ensure completion of DNA replication 3. Prevent damage to cell structures 4. To prevent uncontrolled growth 5. To prevent development of tumors

Post-Lab Questions

”1. Record your hypothesis from Step 1 in the Procedure section here. ”

The daugher cells will be haploid

”2. What do your results indicate about cell cycle control? ”

It is important to avoid cell defects

”3. Suppose a person developed a mutation in a somatic cell which diminishes the performance of the body’s natural cell cycle control proteins. This mutation resulted in cancer yet, but was effectively treated with a cocktail of cancer-fighting techniques. Is it possible for this person’s future children to inherit this cancer-causing mutation? Be specific when you explain why or why not. ”

No. The offspring will not inherit somatic cells

”4. Why do cells which lack cell cycle control exhibit karyotypes which look physically different than cells with normal cell cycle. ”

Due to chromosomal mutations

”5. What are HeLa cells? Why are HeLa cells appropriate for this experiment? ”

They are cervical cancer cells therefore appropriate because they are immortal

”6. Research the function of the protein called p53. What does this function do? Explain how it can affect cell cycle control. ”

This is a tumor suppressor protein involved in preventing the development of tumors

”7. What is the Philadelphia chromosome? How is this chromosome related to cancer? Identify how this chromosome appears physically different on a karyotype than it appears on a karyotype of normal chromosomes. ”

Philadelphia chromosome results from chromosomal translocation and results to the development of acute myeloid leukemia. It therefore appears different on a karyotype.To continue with the answer check on

Order NOW For A 35% Discount!
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Homework Writing

Do you need to ace your test? We have qualified writers to assist you in writing 100% quality homework writing. Mycoursewriter offers students unique and personalized custom papers that help them in getting good grades. Our academic experts will assist you with your dissertation papers, thesis writing, research papers, term papers, and case study homework help. Our writers are experienced and have perfected the art of crafting the best essay writing papers regardless of your academic level. Order now and get our superb homework writing services.

Expert Academic Writers

A student needs professional assistance outside class time. Before hiring our writers, they undergo thorough tests and strict educational backgrounds. After passing a test, our writers undergo training to ensure they deliver expert professional papers to our customers. We ensure they meet the timely delivery of papers and follow our customers' provided instructions. Every writer is an ENL writer and is from the USA, Canada, UK, or Australia. Our experts approach papers effectively depending on their area of specialization.

Affordable Price Guarantees

Is the deal too good to be true? Mycoursewriter is the most affordable assignment help website on the market. We consider students' daily needs for academic help. Our paper costs are reasonably priced to approximately 90% of students around the globe. Our main aim is to ensure students achieve academic excellence, and we believe inconsiderable prices should not hinder students from getting quality homework writing help. In case of any dissatisfaction, we offer unlimited revisions and rewrites without extra charges.

Timely delivery of papers

Tight deadline? Is your paper due in the next few hours? Worry no more. Our writers are here for your rescue. Many college students find it hard to balance their social and academic life and get caught up with academic deadlines. Drafting your paper at the last minute does not allow you to conduct extensive research and craft the correct answers. We have expert writers ready to work on your assignment writing. Urgent writing services are the ultimate solutions you need. We guarantee you timely delivery of papers at your convenience and specified time delivery of the customer.

100% Original Tasks

The ultimate deal-breaker in achieving good grades is submitting imitative papers. Plagiarism is a breach of examination standards and has serious consequences. Students need to deliver papers written in their understanding by paraphrasing their research findings and relevant citations. Our expert's primary consideration is providing free plagiarized papers that meet the lecturers' requirements. Our editors will proofread your paper before delivery ad ensure your papers will not be substandard. We guarantee extreme originality, and in case of any customer concerns, we offer a plagiarism report.

All Round the clock Customer Support

Our website is user-friendly and super useful! Mycoursewriter is the most trusted online writing website always available to provide you with assignment writing services that you need. Our primary concern is meeting customer need specifications by our friendly customer support team that Is available all the time. Our website usability is self-learnable but in case of any problem, feel free to contact us directly through our website email: We have diligently satisfied thousands of students, and you can witness this on our sites' review page.

Try it now!

Calculate the price of your order

We'll send you the first draft for approval by at
Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Advantages of Using Our Assignment writing Services

Mycoursewriter welcomes you for superb essay writing services. We are a legit site offering help with your most challenging homework writing assignments at affordable prices. Your essay paper will be assigned to a professional writer who will craft the paper from scratch according to your provided instructions.


Essay Writing and Proofreading Services

Essay writing is a common assignment writing for most college students. It takes a lot of time to craft a complete perfect essay. Mycourserwiter offers the best essay writing and proofreading services for most college students. Your paper is assigned to an expert writer who does thorough research on fresh ideas and personalizes your essay paper according to your assignment writing guidelines. Our essays are entirely exceptional and undergo a strict procedure that includes papers free from plagiarism and thorough proofreading.


Admission and Business Papers

Writing an admission paper is not every student's desire, and this should not hinder any student from earning an admission. Writing a perfect personal statement to earn a position in a dream school or job can be stressful. Personal statements should display a high level of confidence and uniqueness. Admission essays require you to have a vast knowledge of the current happenings in the world and knowhow of the business world. We have qualified writers with skills who will write your admission paper through comprehensive research. All you have to do is provide us with little details about yourself, instructions and our writers will craft a perfect paper for you.


Editing and Proofreading

Mycoursewriter offers you assignment writing services free from grammatical and formatting mistakes. An error-free paper is significant in scoring the desired maximum grades. We have a team of editors who will go through your paper after our expert writers have delivered their fully crafted papers. Our writers will cover all the aspects of your paper instructions, such as fonts, spacing, and educational formats. Our team of editors will check through your paper to make sure it meets the formatting style provided in the paper instructions. Under no circumstances will a poorly formatted paper will be forwarded to you as our team of editors will ensure careful proofreading.


Technical Papers

Assignment writing is part of a learning process, and one may not have the knowledge to answer all questions correctly. This should not be a stress to you as we have qualified essay writing experts to help you. Our qualified writers are holders of PhDs, Degrees, and Masters in different areas of study and can handle any papers regardless of the complexity. Multiple assignments may be challenging to finish on time. Our skilled professional writers are here to assist you in crafting all the correct answers for your assignment. Stop stressing about your homework writing and place an order with us, and our expert writers will provide you with the best assignment help.