1. Welcome to Jeopardy! Today’s Topic: Genetics

2. If a boy is colorblind, he inherited it from…
A) His mother
B) His father
C) Both his mother and father
D) Unable to determine

3. The allele of a trait that always shows up in the F1 generation is said to be…
Recessive
Dominant
Sex Linked
True-Breeding

4. Your phenotype is based on
A) Your DNA
B) Your Genotype
C) Your Environment
D) Both DNA and Environment

5. The pedigree below is showing a recessive sex-linked trait (colorblindness). What would be the genotype of III-3?

6. What is the probability that a new baby born from I-1 and I-2 will be colored blind?

7. If you crossed two heterozygous individuals, their offspring would have
A) 0% Homozygous recessive
B) 25% Heterozygous
C) 75% Dominant Phenotype
D) 50% Recessive Phenotype

8. Independent assortment and crossing over increase
A) The number of offspring
B) Genetic Linkage
C) Sex-linked traits
D) Genetic Diversity

9. A Red flower is crossed with a white flower, the offspring are pink, this is an example of what kind of dominance?

10. Two plants are crossed, resulting in offspring with a 3:1 ratio for a trait. What does this suggest?
That both parents were heterozygous
That each offspring has the same alleles
That the parents were pure breeds
That blending of traits occurred.

11. Using this pedigree, individuals with the arrows are
A) Heterozygous
B) Homozygous Dominant
C) Homozygous Recessive
D) Genotype unknown

12. For a female to have hemophilia, she must have
A) a Y chromosome
B) an inactivated allele
C) two recessive alleles
D) two dominant alleles

13. Name that blood type….. A Rh B

14. II4 is what relation to III3?
A) Aunt
B) Father
C) Uncle
D) Nephew

15. If a mother has blood type A and a father has blood type B, their children’s blood types could be________.
A. A, B, or O only
B. A, B, O, or AB only
C. A or B only
D. O only

16. Roan cows are an example of what type of dominance?

17. Number 2 is A) Homozygous dominant B) Heterozygous C) Sex-linked
D) Homozygous Recessive
E E e E
1 2
3 4

18. A women that is heterozygous for hemophilia marries a man who blood clots normally.
What is the chance they will have a child that has hemophilia?
What is the chance that they have a daughter with hemophilia?
What about a son?

19. Two parents have the genotype Gg for a dominant genetic disorder
Two parents have the genotype Gg for a dominant genetic disorder. What are the chances their offspring will have the disorder?

20. An individual who is heterozygous for a ______ disorder is called a carrier.
A) Allele
B) Albinism
C) Recessive
D) Dominant

21. The alleles from your mother and father separating into different gametes is described in what law?

22. Name that blood type….. A Rh B

23. For two heterozygous individuals the phenotype ratio is _____ and the genotype ratio is _____.

24. If a family has 4 girls, what are the chances of their next child being a boy?

25. Mendel’s discoveries came from his…
A) Careful microscopic evaluation of chromosomes and genes
B) Dissections on how fertilization occurs in pea plants
C) Breeding experiments with many generations of fruit flies
D) Analysis of offspring from several crosses of pea plants

26. Color blindness is recessive and sex linked
Color blindness is recessive and sex linked. On average there are more color blind males because
A. Women need two alleles to be colorblind
B. Men require two alleles to be colorblind
C. Women have two X chromosomes and it is inherited on the Y chromosome
D. Men are more likely due to chance

27. Name that blood type….. A Rh B

28. Two roan cows are crossed
Two roan cows are crossed. What are the phenotype ratio of the offspring?

29. BbRr x BbRr are crossed. What are the phenotype ratio of the offspring?

30. Parents, one heterozygous for two traits and the other homozygous recessive for two traits, produce_______ offspring that are homozygous dominant for both traits
A) 100%
B) 75%
C) 25%
D) 0%

31. Straight hair is recessive and curly hair is dominant
Straight hair is recessive and curly hair is dominant. In co-dominance, the heterozygous condition would be
A) Curly
B) Straight
C) Wavy
D) Some straight hairs, some wavy hairs

32. When an organism has a heterozygous genotype, the dominant trait is seen. This can be explained by which law?

33. Double Jeopardy!!
Draw a pedigree using the information below. Be sure to include EVERYTHING that should be in a pedigree. Then answer the question… A man and woman marry. They have five children, 2 girls and 3 boys. The mother is a carrier of hemophilia, an X-linked disorder. She passes the gene on to two of the boys who died in childhood and one of the daughters is also a carrier. Both daughters marry men without hemophilia and have 3 children (2 boys and a girl). The carrier daughter has one son with hemophilia. One of the non-carrier daughter's sons marries a woman who is a carrier and they have twin daughters. What is the percent chance that either of the twins will also be a carrier? Give me the genotypes of everyone in the pedigree! (Its sex-linked don’t forget!)