1. GeneticsGenetics With your FAVORITE HOST… Mrs. Einstein

2. Colorblindness is an example of A) X Linked Recessive B) Codominance C) Incomplete Dominance D) Multiple Alleles

3. If you crossed two heterozygous individuals, their offspring would have A) 0% Homozygous recessive0% Homozygous recessive B) 25% Heterozygous25% Heterozygous C) 75% Dominant Phenotype75% Dominant Phenotype D) 50% Recessive Phenotype50% Recessive Phenotype

4. Genes located on the X or Y chromosomes are referred to as A) AllelesAlleles B) RecessiveRecessive C) Sex-linkedSex-linked D) AutosomalAutosomal

5. Blood types is an example of… 1. Codominance 2. incomplete dominance 3. polygenetic 4. multiple alleles A. 1 B. 1, 2 C. 2, 3 D. 1, 4

6. A Red flower is crossed with a white flower, the offspring are pink, this is an example of A) Co-DominanceCo-Dominance B) Incomplete DominanceIncomplete Dominance C) Sex-linkedSex-linked D) Multiple GenesMultiple Genes

7. Using this pedigree, individuals with the arrows are A) HeterozygousHeterozygous B) Homozygous DominantHomozygous Dominant C) Homozygous RecessiveHomozygous Recessive D) Genotype unknownGenotype unknown

8. A person with type A marries a person with type O. Which of following could be an offspring? A. Type O B. Type B C. Type AB D. Cannot Determine

9. Roan cows are an example of A) Co-DominanceCo-Dominance B) Incomplete DominanceIncomplete Dominance C) Sex-linkedSex-linked D) Multiple GenesMultiple Genes

10. Most human traits are … A) DominantDominant B) RecessiveRecessive C) Either Dominant or RecessiveEither Dominant or Recessive D) Complex and still not fully understoodComplex and still not fully understood

11. Number 2 is A) Homozygous dominantHomozygous dominant B) HeterozygousHeterozygous C) Sex-linkedSex-linked D) Homozygous RecessiveHomozygous Recessive 12341234 E eEeE

12. Two parents have the genotype Gg for a dominant genetic disorder. What are the chances their offspring will have the disorder? A) 25%25% B) 50%50% C) 75%75% D) 100%100%

13. An individual who is heterozygous for a ______ disorder is called a carrier. A) AlleleAllele B) AlbinismAlbinism C) RecessiveRecessive D) DominantDominant

14. Seed color and pod size are examples of A) GenotypesGenotypes B) PhenotypesPhenotypes C) HeterozygousHeterozygous D) HeredityHeredity

15. The ______ can only result in one _____. A) Trait, AlleleTrait, Allele B) Genotype, phenotypeGenotype, phenotype C) Phenotype, AllelePhenotype, Allele D) Phenotype, GenotypePhenotype, Genotype

16. Both parents have widow’s peak. Their children should have… A) All Widow’s peakAll Widow’s peak B) No Widow’s peakNo Widow’s peak C) Half widow’s peak and half no widow’s peakHalf widow’s peak and half no widow’s peak D) Not enough informationNot enough information

17. This diagram demonstrates A) Test CrossTest Cross B) PedigreePedigree C) Dihybrid CrossDihybrid Cross D) KaryotypeKaryotype

18. II4 is what relation to III3? A) AuntAunt B) FatherFather C) UncleUncle D) NephewNephew

19. For two heterozygous individuals the phenotype ratio is _____ and the genotype ratio is _____. A) 3:1, 1:2:13:1, 1:2:1 B) 1:2:1, 2:21:2:1, 2:2 C) 1:1, 3:11:1, 3:1 D) 3:1, 2:23:1, 2:2

20. If a family has 4 girls (like mine!), what are the chances of their next child being a boy? A) 0%0% B) 25%25% C) 50%50% D) 100%100%

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

22. Alternate forms of a gene are called _______. A) TraitsTraits B) AllelesAlleles C) ChromosomesChromosomes D) HeredityHeredity

23. Which of the following has a heterozygous genotype? A) RRRR B) rrrr C) RrRr D) RgRg

24. On average there are more color blind males because A. Women need two alleles to be colorblindWomen need two alleles to be colorblind B. Men require two alleles to be colorblindMen require two alleles to be colorblind C. Women have two X chromosomes and it is inherited on the Y chromosomeWomen have two X chromosomes and it is inherited on the Y chromosome D. Men are more likely due to chanceMen are more likely due to chance

25. Two roan cows are crossed. What are the phenotype ratio of the offspring? A) 3:13:1 B) 75%:25%75%:25% C) 50% : 50%50% : 50% D) 1:2:11:2:1

26. What is the pattern of inheritance for this pedigree? A) DominantDominant B) RecessiveRecessive C) Sex LinkedSex Linked D) Cannot DetermineCannot Determine

27. If a girl is colorblind, … A) Her mother must be colorblindHer mother must be colorblind B) Her father cannot be colorblindHer father cannot be colorblind C) Her mother cannot be colorblindHer mother cannot be colorblind D) Her father is colorblindHer father is colorblind

28. Straight hair is recessive and curly hair is dominant. In co-dominance, the heterozygous condition would be A) CurlyCurly B) StraightStraight C) WavyWavy D) Some straight hairs, some wavy hairsSome straight hairs, some wavy hairs

29. In a pedigree, a circle represents a … A) ChildChild B) ParentParent C) MaleMale D) FemaleFemale

30. A person has a widow’s peak. All of the following EXCEPT ____ can be the genotype. A) WWWW B) WwWw C) W_W_ D) wwww

31. If a person has type AB blood and marries a man with type A. Which of the following could NOT be a possible genotype of the offspring? A. Type A B. Type AB C. Type O D. Type B