biology lab
I need this lab completed from start to finish
I need this lab completed from start to finish
see attached document
see attached, continuation of case study 13
Emanuel Medical Center: Crisis in the Health Care
Industry.
Background
The laws of segregation, independent assortment, and dominance, discovered in the mid 19th century by Gregor Mendel, form the basis of all genetics. The ability to predict the results of crossing experiments and explain any variance between expected and observed results is still a vital part of our understanding of heredity. The relationship between the genotype and the phenotype of an organism is now understood with better clarity than it was in the early part of the 20th century. Today our ability to determine gene sequences in individual organisms and populations of organisms has allowed us to deepen our understanding of heredity. In this lab assignment you will experiment with monohybrid crosses and explore the role of chance in genetics.
I have already started the lab work
This contains 100% correct material for UMUC Biology 103 LAB05. However, this is an Answer Key, which means, you should put it in your own words. Here is a sample for the Pre lab questions answered:
Pre-Lab Questions
1. What major events occur during interphase?
The cell functions at its job, and prepares for mitosis by collecting resources and duplicating organelles (G1) and genetic content (S), then creating proteins needed for nuclear division (G2).
2. A person, residing in a location where they are exposed to the sun often, develops a mutation in some of their skin cells resulting in cancer. Consider whether their offspring will be born with the same mutation. Use scientific evidence to support your answer.
It would be highly unlikely that the person’s offspring will be born with same skin cancer mutation because the mutation occurred in the person’s skin cells. Skin cells are somatic cells (body cells) and are not involved in meiosis or reproduction. For the mutation to be passed on to the offspring, a sex cell (sperm or egg) would have to carry the mutation.
The other questions that will be answered:
Experiment 1: Following Chromosomal DNA Movement through Meiosis
Data Tables and Post-Lab Assessment
Trial 1 – Meiotic Division Beads Diagram:
Prophase I
Metaphase I
Anaphase I
Telophase I
Prophase II
Metaphase II
Anaphase II
Telophase I
Cytokinesis
Trial 2 – Meiotic Division Beads Diagram:
Prophase I
Metaphase I
Anaphase I
Telophase I
Prophase II
Metaphase II
Anaphase II
Telophase I
Cytokinesis
Post-Lab Questions
1. What is the ploidy of the DNA at the end of meiosis I? What about at the end of meiosis II
2. How are meiosis I and meiosis II different?
3. Why do you use non-sister chromatids to demonstrate crossing over?
4. What combinations of alleles could result from a crossover between BD and bd chromosomes?
5. How many chromosomes were present when meiosis I started?
6. How many nuclei are present at the end of meiosis II? How many chromosomes are in each?
7. Identify two ways that meiosis contributes to genetic recombination.
8. Why is it necessary to reduce the number of chromosomes in gametes, but not in other cells?
9. Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following:
i. Sperm Cell:
ii. Egg Cell:
iii. Daughter Cell from Mitosis:
iv. Daughter Cell from Meiosis II:
10. Research and find a disease that is caused by chromosomal mutations. When does the mutation occur? What chromosomes are affected? What are the consequences?
11. Diagram what would happen if sexual reproduction took place for four generations using diploid (2n) cells.
Experiment 2: The Importance of Cell Cycle Control
Data Tables and Post-Lab Assessment
1.
2.
3.
4.
5.
Post-Lab Questions
1. Record your hypothesis from Step 1 in the Procedure section here.
2. What do your results indicate about cell cycle control?
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, 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.
4. Why do cells which lack cell cycle control exhibit karyotypes which look physically different than cells with normal cell cycle.
5. What are HeLa cells? Why are HeLa cells appropriate for this experiment?
only for Tutor Lynn G
CASE STUDY ASSIGNMENT:
INSTRUCTION. PLEASE SEE ATTACHMENT ARTICLE FOR ALL 12 CASE STUDY.
THERE ARE TOTAL OF 12 CASE STUDY:
1) PLEASE DO ALL CASE STUDY SEPARABLY
2) AS YOU READY THE CASE STUDY THERE ARE QUESTIONS WITH IN THE CASE STUDY THAT NEED TO BE ANSWER
3) PLEASE TYPE THE QUESTIONS WITH IN EACH CASE STUDY AND ANSWER IT, AGAIN TYPE NO HAND WRITING.
MY PRICE ON THIS ASSIGNMENT IS FRAME.
This contains 100% correct material for UMUC Biology 103 LAB06. However, this is an Answer Key, which means, you should put it in your own words. Here is a sample for the Pre lab questions answered:
Pre-Lab Questions
1. Use the following classifications to determine which organism is least related out of the three. Explain your rationale. (1 pts)
The Eastern Newt is the least related organism out of the three. While all three are classified into the same domain, kingdom, phylum and class the Eastern Newt is in a different order than the American Green Tree Frog and the European Fire-Bellied Toad.
2. How has DNA sequencing affected the science of classifying organisms? (1 pts)
DNA sequencing has allowed for the comparison of genes at the molecular level as opposed to physical traits at the organism level. Physical traits can be misleading when classifying how related two organisms are. DNA sequencing can also trace relatedness through generations and more accurately assess how closely related two organisms are.
3. You are on vacation and see an organism that you do not recognize. Discuss what possible steps you can take to classify it. (1 pts)
The organism’s physical features can be used to compare it to known organisms. Some physiological features can even possibly be used to help classify it.
The rest of the questions in the lab are answered as well:
Experiment 1: Dichotomous Key Practice
Data Tables and Post-Lab Assessment
Table 3: Dichotomous Key Results
Organism
Binomial Name
i
Selasphorus platycercus
ii
Mus musculus
iii
Vaccinium oxycoccos
iv
Ramphastos vitellinus
v
Quercus abla
vi
Evathlus smithi
vii
Helix aspersa
viii
Taeniopygia guttata
ix
Lonicera japonica
xi
Oryctes nasicornis
xii
Taeniopyga guttata
xiii
Musa acuminata
Seems like x was omitted, which would have been Carduelis tristis.
Post-Lab Questions
1. What do you notice about the options of each step as they go from number one up?
2. How does your answer from Question 1 relate to the Linnaean classification system?
Experiment 2: Classification of Organisms
Data Tables and Post-Lab Assessment
Table 2: Key Characteristics of Some Organisms
Organism
Kingdom
Defined Nucleus
Mobile
Cell Wall
Photosynthesis
Unicellular
E. Coli
Yes
Yes
Protozoa
Yes
Yes
No
Yes
Mushroom
Yes
Yes
Sunflower
Yes
Yes
Yes
Yes
Bear
Yes
Yes
Post-Lab Questions
1. Did this series of questions correctly organize each organism? Why or why not?
2. What additional questions would you ask to further categorize the items within the kingdoms (Hint: think about other organisms in the kingdom and what makes them different than the examples used here)?
3. What questions would you have asked instead of the ones that you answered about when classifying the organisms?
I have 7 assignments of biology lab,I want tutor to help me to do them.
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