oblem 7: (8 pts) Cirele the correct answer to each of the questions on this page

Question

oblem 7: (8 pts) Cirele the correct answer to each of the questions on this page e phylogeny below shows the evolutionary relationship among 5 species of flowering plants. e ancestor of these species is hypothesized to have had white flowers and opposite branching ves. Each of the circles on the phylogeny show a location eared Pick the best possible answer for each of the following True/False or multiple choice questions (2 pts. each) where a new derived trait could have Problem S: 9 pts) Use the fellowing information to anpeer questons 1-3: In a popalation of mice, 180 are black with the grnobpe BB, 240 are gray with the genotype B and 80 are white with the genotype b& Species 1-white flowers . What is the frequency of the b allele in the population described above? A.064 or 64% B.06 er 60% C.0.4 or 40% D. 0.16 or 16% Species 2 Species Species 4 What is the current frequency of white mice? A.064 or 64% B.0.6 or 60% C.04 or 40% D.0.16or16% 2. Species 5 Which of the statements below best describes the evolutionary relationship among species 1, 3 and 5? a. 3. What is the expected frequency of gray mice in the next generation? c. Species 5 is more elosely related to species 3 than species 1. d. Species 5 is more closely related to species I than species 3 e. Species 5 is equally related to spécies 3 and species 1 a. 0.48 or 48% b. 04 or 40% 0.36 or 36% 0.16 or 16% d b. If Species 4 and Species I both have white flowers, this would be an esample of which of the following? a. Homology b. Homoplasy Problem 8: (14 pts) Indicate whether each of the follo"ingstatementi. True or Fabe. 4. Two mothers each give birth to a son at a busy local hospital at the same time. The son of Couple 1 has hemophilia, a recessive X-linked trait, but neither parent has the disease If Species 1, 2 and 3 all have alternately branching leaves, where would you place this Couple 2 has a son withost hemophilia,even though the father has hemophilia. The sons must have been switched at birth derived trait on the phylogeny? 5. For evolution to be occurring, natural selecticn must also be occuring e. Point A d. Point B e. Point C f. At two of the points listed above. 6. Evolution will always occur any time that an organism neods to change in onder to 7. Exposure to a selection pressure, such as an herbicide oe antibiotic, is what causes a new s Gene flow will cause twe populations of organisms to become more genetically similar survive in a changing environment trait to appear in a population At all three of the points listed above. If species 3, 4 and S all have red flowers, where would you need to place this derived trai on the phylogeny? 9. If genetic drift is occurring you will be able to predict which allele will become more 10. New alleles are produced when DNA is transcribed and translated to form a protein prevalent h. Point A i. PointC j. Point D k. No additional placement of this trait on the phylogeny would be required. Page 11 of II Page 10 of ll

Explanation / Answer

Problem 7

a) Answer is option (c) i.e. Species 5 is more closely related to species 3 than species 1

(Because their recent ancestors are more closely related)

b) Answer is option (a) i.e. Homology

(homology refers to biological structures or characteristics same found on two or more different species, when those characteristics can be traced to a common ancestor or the species)

c) Answer is option (c) i.e. Point A

d) Answer is option (i) i.e. Point C

Problem 8

1. Answer is option (c) i.e. 0.4 or 40%

[     ((80*2) +240)/500*2   ]

2. Answer is option (d) i.e. 0.16 or 16%

[     80/500   ]

3. Answer is option (a) i.e. 0.48 or 48%

[     2*(0.6)*(0.4) ]

4. Flase

5. False

6. False

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.