.- Using a Punnett square, determine the possible combinations of phenotypes of specimens with the following characteristics: CC = brown fur Cc= gray hair cc = white fur LL= brown eyes Ll = gray eyes ll = blue eyes 2.- From the previous table, mention the proportion of necessary according to Mendel's laws

.- Using a Punnett square, determine the possible combinations of phenotypes of specimens with the following characteristics: CC = brown fur Cc= gray hair cc = white fur LL= brown eyes Ll = gray eyes ll = blue eyes 2.- From the previous table, mention the proportion of necessary according to Mendel's laws

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Description: 1.- Using a Punnett square, determine the possible combinations of phenotypes of specimens with the following characteristics:CC = brown furCc= gray haircc = white furLL= brown eyesLl = gray eyesll = blue eyes2.- From the previous table, mention the

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 8RQ: Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods....

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1. A heterozygous mouse AAy does not produce enough pigment and it is yellow. Homozygous individuals die during development, but AAy heterozygous do not. Why? You may use any graphic aid to explain this, if necessary. This means that you may use a Punnett square or a forking segregation diagram, or computations with fractions. 2. Explain why there is a non-Mendelian 2:1 yellow/agouti phenotypic ratio in this cross. 3. What is the Raly gene? What does it encode? How does it relate to the lethality of Ay?
9. Make a pedigree for each of the following situations. For each individual, write the individual's genotype (when possible) next to the individual's symbol (e.g. O xty, I Gg): a. Two parents do not have cystic fibrosis and they have a daughter with cystic fibrosis and a son who does not have cystic fibrosis. The daughter grows up and she mates with a male who does not have cystic fibrosis. Their only child is a boy and he has cystic fibrosis. b. A man with hemophilia mates with a female without hemophilia. They have one son and one daughter. The daughter has hemophilia and the son does not have hemophilia. The son grows up, and he marries and mates with a female. Their only child is a boy, and he has hemophilia.
Phenotypic ratio Type A : Type O = 2:2 or 1:1 Let's Try This! I1. Solve for the genetic problems below. One point each for: a. genotype of the parents b. Punnett square C. genotypic ratio d. phenotypic ratio e. type of Mendelian or non-Mendelian principle
1 of 1 X 2. The following 6 pedigrees were determined to show linkage to a trait: Pedigree A: LOD = 1.8 Pedigree D: LOD = -1.2 Pedigree B: LOD = 2.2 Pedigree E: LOD = -2.2 Pedigree C: LOD = 1.0 Pedigree F: LOD = -0.6 A. What is the estimated overall evidence for linkage in these combined families? B. Which pedigree(s) can be conclusively excluded from being linked to these markers? C. How much more likely is linkage in the pedigrees with positive LOD scores than the families with negative LOD scores? 61 words 31₁ Focus LIM E
#2 a) If sex and eye colored were viewed as two different phenotypes with male being dominant over female (or vice versa), then Mendelian ratios of a dihybrid cross may explain the ratios that Morgan got. Here is some hypothetical data based on the ratios gotten by Morgan and the expected Mendelian ratios for a dihybrid F1 cross. Perform a Chi-square test (separate scrap paper) with the null hypothesis being that the "Morgan observed ratios" are within chance from the Mendelian ratios. State whether the Chi-square test supports or rejects the null hypothesis and explain. (Be sure to include the X2 value, degrees of freedom, critical value.) Hint: what did Morgan discover? Think about this for your degrees of freedom.* Expected Mendelian Ratios Morgan Observed Ratios 900 Red, male 800 Red, male 300 Red, female 400 Red, female 300 white, male 400 white, male O white, female 100 white, female Terms of Use Support | Schoology Blog | PRIVACY POLICY IN
# 2 a) If sex and eye colored were viewed as two different phenotypes with male being dominant over female (or vice versa), then Mendelian ratios of a dihybrid cross may explain the ratios that Morgan got. Here is some hypothetical data based on the ratios gotten by Morgan and the expected Mendelian ratios for a dihybrid F1 cross. Perform a Chi-square test (separate scrap paper) with the null hypothesis being that the "Morgan observed ratios" are within chance from the Mendelian ratios. State whether the Chi-square test supports or rejects the null hypothesis and explain. (Be sure t include the X2 value, degrees of freedom, critical value.) Hint: what did Morgan discover? Think about this for your degrees of freedom. * Expected Mendelian Ratios Morgan Observed Ratios 900 Red, male 800 Red, male 300 Red, female 400 Red, female 400 white, male 300 white, maile O white, female 100 white, female Schoology Support | Schoology Blog | PRIVACY POLICY | Terms of Use INTL
(1) * D pols Add-ons Help Last edit was 27 minutes ago ext Calibri 12 BIUA + D田。三三三▼三 4 5 | 6 L 14. For the following F2 phenotype data, calculate the chi-squared value, determine the p value using the chart above, and explain whether the data follows Mendelian patterns of inheritance. a. Full pods 882, Constricted pods 299 b. Violet flowers = 705, White flowers = 224
. In a dihybrid test cross, the following results were obtained: A‑B‑, 121; A‑bb, 107; aaB-, 115; and aabb, 93. Do these data approximate a dihybrid test cross ratio with independent assortment? Complete the following table and answer the related questions. Phenotype O E (O-E) (O-E)2 (O-E)2/E A_B_ 121 A_bb 107 aaB_ 115 aabb 93 Totals X2= Instructor’s Calculation of X2= 4.0367 In interpreting this X2 value, you have ____3_______degrees of freedom. In this case do you accept/reject the hypothesis that these data approximate a dihybrid test cross ratio with independent assortment? What is the probability that the deviations are due to chance alone?
1. The genes for the traits that Mendel worked with are either located on different chromosomes or so far apart on the same chromosome that crossing over almost always occurs between them. How did this circumstance help Mendel recognize the principle of independent assortment? a. Otherwise, his dihybrid crosses would not have produced a 9: 3: 3:1 ratio of F2 phenotypes. b. The occurrence of individuals with unexpected phenotypes led him to the discovery of recombination c. It led him to the realization that the behaviour of chromosomes during meiosis explained his results. d. It meant that the alleles involved were either dominant recessive, which gave 3: 1 ratios in the F1 generation. 2. A child is born to a mother whose blood group is B and a father whose blood group is A. The child is of blood group A. According to this which of the following is true? A. The mother has Bombay blood group. B. The child's father is some other man. C. This is a normal case. D. The child has genotype…
Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods. Mendel found that the traits behave according to a dominant/ recessive pattern in which inflated pods were dominant. If you performed this cross and obtained 650 inflated-pod plants in the F2 generation, approximately how many constricted-pod plants would you expect to have? 600 165 217 468
Give two assumptions for the Mendelian Inheritance for Segregation and Independent Assortment experiments acceptable.
1. Gregor Mendel knew that some traits could be closely associated. Mendel said that those traits were essentially the same trait. a. Could Mendel be including traits that were very closely linked or that were due to the same genetic factor? b. Did he need to distinguish between these two possibilities in order to reject them as evidence for his Law of Independent Assortment? Why or why not?