Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Sexual reproduction increases genetic variability through

09/11/2021 Client: muhammad11 Deadline: 2 Day

Mini Science Project Questions -

Preparation Task 1:
Describe the mechanisms by which meiosis would introduce genetic variability in a population. If one diploid yeast cell was heterozygous for an allele with a Dominant mutation on it, what proportion of its offspring could be expected to carry that dominant mutation after mating? (Assume it mates with a cell that is homozygous for the normal, recessive allele.)
Interestingly, yeast switch to sexual reproduction when they are under conditions of stress.

For the purposes of this task, assume yeast populations follow this simplified rule: When yeast are reproducing sexually, they will be found as diploid cells that can go through meiosis (or mitosis), while populations that are producing asexually will include only haploid cells undergoing mitosis. Remember that chromosomes can be counted using karyotypes as seen in your text Figure 9.3.

During Meiosis-I at Prophase-I of pachytene stage crossing over or recombination occurs between two non-sister chromatids of homologous chromosomes resulting in exchange or reshuffling of genes. This process is universal among sexually reproducing organisms and is responsible for all types germinal variations that are passed on from parents to offspring. 50% of offspring would be carrying dominant mutation when the heterozygous is crossed with homozygous recessive. For example, Aa x aa the result will be Aa, Aa, aa, aa 1:1 ratio

Preparation Task 2:
Explain why sexual reproduction could be advantageous to a population under stressful conditions. Relate this to the process of natural selection.

If an organism is under stressful condition sexual reproduction could be advantageous because:

Sexual reproduction increases variation. So, the organism can make various variants. In sexual reproduction we know we get one set of chromosomes from father and one from mother. And there are also crossing over during gamete formation. So sexual reproduction creates many variations.

It makes variants that are different from parental population. So, if the parental population is in stress then the variants created by sexual reproduction could survive the changing environment. Some variation should have advantages upon the changing environment, so they have better chance to survive in nature.

Thus, sexual reproduction also prevents the extinction of that organism.

Preparation Task 3:
Consider the differences between mitosis and meiosis. Examine the figure "A Simplified Model of Yeast Reproduction" above and identify ways in which you could determine whether a yeast cell was going through mitosis or meiosis.

Organisms, including yeast, find a variety of environmental conditions stressful. We can grow yeast in a laboratory under either stressful or non-stressful conditions.

Conditions or chemicals that damage organelles (Chapter 3), interfere with transporting nutrients (Chapter 4), or affect the processes of aerobic or anaerobic respiration (Chapter 6) would “stress” these organisms. Environments that affect protein folding (Chapter 2) or enzyme regulation (Chapter 4), are also stressful environments.

Mitosis is an equational division where the chromosomes double up and then divide into two. So, the mother cell divides into 2 daughter cells, each having the equal number of chromosomes as the mother cell. The yeast cell in picture performs asexual reproduction wherein its haploid cell undergoes mitosis producing 2 cells with ploidy N.

When stressful conditions arrive, the yeast cell in the picture undergoes sexual reproduction. The diploid cell with 2N ploidy gives 2 daughter cells with half the number of chromosomes. Hence meiosis is also called as reductional division, as the chromosome number reduces to half.

Preparation Task 4:
Revisit these sections in your textbook if needed and propose at least two specific situations or conditions (that you could control) that yeast may find stressful. Include a citation (your textbook or other sources you may consult)

Preparation Task 4:

Revisit these sections in your textbook if needed, and propose at least two specific situations or conditions (that you could control) that yeast may find stressful. Include a citation (your textbook or other sources you may consult)

Gen Ed Assignment Tasks

Task 5 Define a problem or pose a question:

Define a question you could investigate that links a stressful scenario you identified in Preparation Task 4 to sexual reproduction in yeast.

Task 6 Formulate a hypothesis:

Formulate a hypothesis that could be tested regarding your question. Include your reasoning that led to this hypothesis.

Task 7 Designing an experiment:

Outline an experiment you could use to test this hypothesis. Include and identify the following 6 key elements of your experiment:

1. the experimental versus control group

2. the dependent variable

3. the independent variable

4. the standardized variables

5. adequate replication/sample size

6. materials and methods

Task 8 Drawing Conclusions:

(Defining results that would support or refute your hypothesis.) Complete both A +B.

A) Describe a possible result from your experiment that would support your hypothesis. You will to describe the results for both the experimental and the control groups to draw a valid conclusion. Provide an explanation for your conclusion. Your explanation should demonstrate the connection between your results and the support of your hypothesis.

B) Describe a possible result from your experiment that would refute your hypothesis. You will to describe the results for both the experimental and the control groups to draw a valid conclusion. Provide an explanation for your conclusion. Your explanation should demonstrate the connection between your results and how they refute your hypothesis.

Task 9 Envision future directions:

Imagine that you have discovered a new species of yeast. Describe how your method, process, or solution could be applicable to this new situation.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

A Grade Exams
Calculation Master
Study Master
ECFX Market
Solutions Store
Assignments Hut
Writer Writer Name Offer Chat
A Grade Exams

ONLINE

A Grade Exams

This project is my strength and I can fulfill your requirements properly within your given deadline. I always give plagiarism-free work to my clients at very competitive prices.

$23 Chat With Writer
Calculation Master

ONLINE

Calculation Master

I find your project quite stimulating and related to my profession. I can surely contribute you with your project.

$28 Chat With Writer
Study Master

ONLINE

Study Master

I have written research reports, assignments, thesis, research proposals, and dissertations for different level students and on different subjects.

$50 Chat With Writer
ECFX Market

ONLINE

ECFX Market

As per my knowledge I can assist you in writing a perfect Planning, Marketing Research, Business Pitches, Business Proposals, Business Feasibility Reports and Content within your given deadline and budget.

$46 Chat With Writer
Solutions Store

ONLINE

Solutions Store

As an experienced writer, I have extensive experience in business writing, report writing, business profile writing, writing business reports and business plans for my clients.

$45 Chat With Writer
Assignments Hut

ONLINE

Assignments Hut

I am an elite class writer with more than 6 years of experience as an academic writer. I will provide you the 100 percent original and plagiarism-free content.

$40 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Athabasca university library login - Dock leveler parts list - A fan is turned off and its angular - IT 345 Assignment 1 - Tigerairways ph promo 2017 - Apahap fish in english - God disguised as beggar - Uwa second hand bookshop - Time management quadrant examples - Manchester united soccer club case study answers - Search Engine Optimization - A common size income statement for creek enterprises - Admin Discussion Board - Describe the physical appearance of the witches - Macquarie university free parking - The capulets and the montagues - South canyon fire map - Productivity is monitoring performance, comparing it with goals, and taking corrective action. - Comet company is owned equally by pat - Walden university positive social change - Underlying Assumptions - Integrating teams at hernandez & associates - Policy Analysis and Reflection Nursing Theory (24 hours) - Build st andrews cross - Discussion 6 - Need done ASAP - 3500 steps in miles - What is the numerical value of avogadro's number - Receiver Coffee Ivey Case Study - How to find the maximum number of real zeros - What do uchida and momaday feel toward their families - Nurse as knowledge worker infographic - Cj industries and heavey pumps case study answers - Chipotle strategy analysis - Factors Influencing the Cost of Dissertation Writing Services: - Global psychology - 12 page paper - CJ 3200 MOD 3 DB 1 - The thinker's guide to critical thinking - 2000 by applied practice austin tx answers the odyssey - Non traditional recruitment strategies in south africa - Child development stages chart 0-16 years - History Help - MIlestone 2 - Investment model of commitment - Everest simulation environmentalist - Bus Cont Plan&Disas Recov Plan (ISOL-632-A04) - Phd In Information Technology - Michael porter generic strategies - Reason for the season - Risk Management - Physical measure method of allocating joint costs - I have rung the doom of my good name - Butyl butanoate structural formula - How to double the volume of a square pyramid - Teach and tumble daycare port washington - How many wives did solomon have according to huck finn - Hangman game in c - In 520 bce, the newfound athenian democracy was threatened by - Lies my teacher told me chapter 11 - Civil 3d sanitary sewer analysis - The Role of Tobacco Cessation and Prevention to Combat COVID 19 - Al si phase diagram - Gledhill torrent re solar - Define the strategic management. In order, discuss what happens in each of the steps in the strategic management process. - Lighten our darkness o lord - A negative-news message that is organized indirectly should begin with a buffer. - How to write a good reflective statement ib - Adult development - Sampath cengage - What approaches could have yielded additional valuable information - RESEARCH IN THE DIGITAL AGE - Homework - ¿me lo estás preparando? se los debemos pedir. tienes que mostrármelos. - 901/22 doris street north sydney - Analysis of a Pertinent Healthcare Issue - First class accounts mona vale - Chateau of the ravenous rodent light all the heirlooms - Transition to Graduate Study - Genetics utah gene therapy - Types of long reports - The great gatsby setting - Aalsmeer flower auction perfect competition - Adobe garamond pro otf - 2web secret sound clues 2018 - Converts data into a meaningful information - Rough Draft Literature Review - Discussion needed by friday @ 6pm - Malu kangaroo teacher notes - Revolutionary mothers thesis - Self care eating healthy and maintaining a healthy weight ati - Unit using social media in business assignment - Physical Assessment Reflection - How to tell if raw prawns are off - MISS PROFESSOR ONLY - Final Paper - How did the goals of the crusades change - Tootsie roll industries inc financial statements - The raid 2 hammer girl - KPIs - Market research simulation answers