Genetics Practice Problems Exercises Assignment
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53563633773 |
Type |
Essay |
Writer Level |
Masters |
Style |
APA |
Sources/References |
4 |
Perfect Number of Pages to Order |
5-10 Pages |
Description/Paper Instructions
Genetics Practice Problems Exercises Assignment
Genetics Problems:
1) In guinea pigs, black fur is dominant over white fur. How could an animal breeder peppermint whether a black guinea pig is homozygous or heterozygous?
2) A short stem, yellow pod pea plant is crossed with a true breeding long stem, green pod pea plant. Assuming that long stems are dominant to short stems, and green pods are dominant to yellow pods1) what are the genotypes and phenotypes of the F1 generation? and 2) the genotypes and phenotypes from a F1 x F1 cross?
3) In humans, hemophilia (bleeder’s disease) is a recessive, X-linked trait. Use a Punnett square to show the possible genotypes of offspring of a man who is a hemophiliac, and a normal, but heterozygous woman, where XH contains the normal clotting gene and Xh contains the gene for hemophilia.
4) Lesch-Nyhan syndrome is a metabolic defect caused by the lack of the enzyme hypoxanthine-guanine phosphoribosyl transferase (HGPRT). This disease is the result of an X-linked, recessive mutation and results in mental retardation, self-mutilation and early death. A normal man marries a woman who had a brother who died of LNS. You are the genetic counselor who will advise them on the likelihood of their having a LNS baby. a) What are the possible genotypes for the woman? What is the man’s genotype? b) For each of the woman’s possible genotypes, what are the possible genotypes of her offspring and the implications for survival for each of them?
5) In tomatoes, red fruit color is dominant to yellow. Suppose a tomato plant homozygous for red is crossed with one homozygous for yellow. Determine the phenotype and genotype of a) the F1 offspring b) the offspring of a cross of the F1 back to the red parent c) the offspring of the F1 back to the yellow parent
6) In humans, the allele for free earlobes is dominant to the allele for attached earlobes. A woman with attached earlobes has children with a man who has free earlobes. a) what is the genotype of the woman? b) What is the genotype of the man? c) What proportion of their offspring will have attached earlobes?
7) Phenylketonuria (PKU) is a human autosomal genetic disorder in which the affected individual cannot metabolize the amino acid phenylalanine. The disease is characterized by severe mental retardation if left untreated. The disease is caused by homozygosity for a recessive, mutant allele. If two parents are heterozygous for the allele, what is the probability that their child will have PKU?
8) A couple with a newborn baby is troubled that the child does not resemble either of them. Suspecting that a mix-up occurred at the hospital, they check the blood type of the infant and find that it is type O. As the father is type A and the mother type B, they conclude that a mix-up must have occurred. Are they correct?
9)In the fly Drosophila, the allele for dumpy wings (d) is recessive to the normal longwing allele, (D) and the allele for white eye (w) is recessive to the normal red-eye allele (W). In a cross of DDWW with Ddww, what proportion of the offspring are expected to be “normal” (long wings and red eyes)? What proportion are expected to have dumpy wings and white eyes?
10)A farmer breeds a chicken with all white plumage with a chicken with all black plumage. All of the F1 offspring have bluish-gray plumage. When two of the bluishgray birds are crossed, black, white and bluish-gray offspring are produced. What is the mechanism of inheritance and the genotypes of the parents, F1’s and F2’s.
Testing the Impact of PH and Temperature on Enzyme Activity Lab Report
Enzyme Lab Report Guidelines
Guidance for Enzyme Lab Report
This lab report will focus on your evaluation of how temperature and pH affect the rate of enzyme activity.
Introduction / Purpose (5 points)
Why did we do this lab?
Are there any important concepts or explanations that are relevant to the reader’s understanding of the purpose and background of the lab?
What is invertase? What chemical reaction does it catalyze? This can be a diagram.
What were your hypotheses for each of the experimental procedures we conducted?
What is Benedict’s test? How and why does it work? Why did we use it? What are reducing sugars?
Materials & Methods (5 points)
Follow the directions provided above regarding the level of detail to include here.
Convey the experimental design using a labeled diagram or image, if desired.
Results & Data (5 points)
Include any tables from the lab containing the data you collected
Include a written statement of the results of every single experiment you conducted.
Discussion & Conclusion (10 points)
Scientifically interpret your results for every experiment you conducted.
This means every temperature, and every pH.
Can you relate your results to Brownian motion or diffusion?
Can you relate your results to the effect of pH on secondary structure?
What does it actually mean when an enzyme is denatured by heat?
Say you obtained a negative result from Benedict’s test when you carried out the chemical reaction at the highest pH.
Why did you observe these results? You must provide an explanation that is based on your knowledge of enzymes, how they function, etc.
You may not completely understand why the invertase didn’t function in those conditions…it is your job to learn this.
You may have to reference your textbook or another reference to gain sufficient understanding of your experimental outcomes!
RUBRIC
QUALITY OF RESPONSE |
NO RESPONSE |
POOR / UNSATISFACTORY |
SATISFACTORY |
GOOD |
EXCELLENT |
Content (worth a maximum of 50% of the total points) |
Zero points: Student failed to submit the final paper. |
20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. |
30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. |
40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. |
50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. |
Use of Sources (worth a maximum of 20% of the total points). |
Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. |
5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. |
10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. |
15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. |
20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. |
Grammar (worth maximum of 20% of total points) |
Zero points: Student failed to submit the final paper. |
5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors |
10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors |
15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. |
20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. |
Structure of the Paper (worth 10% of total points) |
Zero points: Student failed to submit the final paper. |
3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. |
5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper |
7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. |
10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper. |
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