Homework answers / question archive / 1)Inheritance of Human Genetic Characteristics Genetic Variation     2 For each trait determined by a flip of the coin, record the genes donated by the mother, the genes donated by the father, and the resulting genotype of the baby

1)Inheritance of Human Genetic Characteristics Genetic Variation     2 For each trait determined by a flip of the coin, record the genes donated by the mother, the genes donated by the father, and the resulting genotype of the baby

Biology

Share With

---

1)Inheritance of Human Genetic Characteristics

1. 1. Genetic Variation

 

 

2 For each trait determined by a flip of the coin, record the genes donated by the mother, the genes donated by the father, and the resulting genotype of the baby.  Also describe how the trait will appear in the baby (phenotype).  Flip a coin as described in the lab manual to determine each trait.

 

 

3 When you have determined all 15 traits for your baby, write a paragraph describing the baby’s phenotype.

 

 

4. In a random sample of 100 babies, how many children would you expect to have bushy eyebrows?
5. How are these babies related to one another?
6. In the case of 100 babies the following phenotypes resulted.  What is the ratio?

 

7 List the F₂ phenotypes possible from the pedigree shown below.

 

8. What percent have free ear lobes?

 

 

9 A pedigree can also be used to trace previous generations.  What are the possible parent (P₁) phenotypes of the above pedigree?

 

10 Two of the parents of the F₁ individuals have genotypes that are shown in the figure below.  Predict and fill in the answers for the other parent’s possible genotypes.  What are the potential genotypes of the F₂ generation?

 

 

 

 

 

 

11. What are the possible parental genotypes of the F₁ generation?  Phenotypes?

 

12. What percentage of the F₁ individuals are normal?  Are carriers?
13. What percentage of F₂ individuals are normal?  Are carriers?  Are affected?

 

14. Describe the symptoms of the genetic disorder you modeled.

 

 

15 Two of the parents of the F₁ individuals have genotypes that are shown in below.  Predict and fill in the other parent’s genotype.

 

 

16. What are the possible parental genotypes of the F₁ generation?  Phenotypes?

 

 

 

 

17. What is the percent probability of F₂ individuals who are normal?  Carriers?  Affected?

 

18. Describe the symptoms of the genetic disorder red-green color blindness.

 

19. Is it possible for a child of blood type AB to be produced by two type O parents?  Show your work in the Punnett square then explain.

 

 

 

20  It is not possible because neither of the parents have the A or B allele. 

21. Use Punnett squares to determine which of the following blood types could be the father.  The first square is shown with answers as an example.

 

 

 

 

22 What are the possible blood types with heterozygous type A father and heterozygous type B mother?

 

 

23 Is it possible to produce type O baby from type A father and type O mother?

Could he be the father?

 

24. Does this evidence alone prove he is the father?

 

 

25. Bioethics and the Human Genome Project

 

26 In the space below, indicate the title of each article as well as a brief discussion (not a summary) of how the topics in the articles you chose may impact either you, your family or society as a whole.

 

 

Summary Questions

1. Give examples of human traits that show these patterns of inheritance:

 

2. Queen Victoria of England was a carrier of the genetic disorder which causes hemophilia A.  The following diagram is a partial pedigree of her family.  Use the information below to answer the next series of questions.

 

SHORT QUESTION AND ANSWER

1 How many sons did Queen Victoria have?

2. Of her sons, what percentage were hemophiliacs?
3. What percentage of her daughters were carriers of the hemophilia gene?
4. Overall, who does hemophilia affect more, males or females?
5. What is The Human Genome Project?
6. What was the ultimate goal of the HGP?
7. What do you feel is the most important issue facing our society as a result of the HGP?