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- 1. Multiple ChoiceHow many alleles does an individual have for each trait?1234
- 2. Multiple ChoiceWhat type of inheritance do two alleles have if their traits blend together?Incomplete DominanceCo-DominanceMendelian InheritanceHomozygous Inheritance
- 3. Multiple ChoiceA pattern of inheritance in which a trait is carried on one of the sex-determining chromosomes.Mendelian InheritanceCo-dominanceIncomplete dominanceSex-linked inheritance
- 4. Multiple Choice
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?Incomplete DominanceCo dominanceIndependent assortmentRecessive inheritance - 5. Multiple ChoiceA roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan bull mate together?4: Orange and White1: Orange : 1 White2 Orange: 2 Orange and White: 0 White1: Orange: 2 Orange and White: 1 White
- 6. Multiple ChoiceHow are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?There is no differenceThe heterozygous genotype has a unique phenotypeThere is no heterozygous genotypeThere is only one phenotype regardless of genotype.
- 7. Multiple ChoiceThe different forms of a gene are calledtraitspollinatorsalleleshybrids
- 8. Multiple ChoiceA breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:all blackall whiteall grayspeckled black and white
- 9. Multiple ChoiceWhat does heterozygous mean?An organism that has the same genes for a trait (TT or tt)An organism that has different genes for a trait (Tt)When neither gene is fully dominant; offspring is a mixture of boththe different forms of a trait (hair color--> brown, blonde, red
- 10. Multiple ChoiceAn allele whose trait only shows up when no dominant allele is present.hidden alleledominant allelerecessive allelepresent allele
- 11. Multiple Choicehaving two of the same genes for the trait (sometimes called purebred).homozygoushetrozygousproteinchromosome
- 12. Multiple ChoiceThis type of inheritance pattern is a MIXTURE of both traits.incomplete dominanceco-dominancecomplete dominancerecessive pattern
- 13. Multiple ChoiceThis type of inheritance pattern shows BOTH traits in possible offspringcomplete dominanceincomplete dominanceco-dominancedominant pattern
- 14. Multiple ChoiceSnap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?RedRed and WhiteWhitePink
- 15. Multiple ChoiceWhich of the following is a hybrid?BBbbBb
- 16. Multiple ChoiceWhich of the following is purebred?AAaaAaBoth AA and aa
- 17. Multiple ChoiceIn chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?50%0%25%100%
- 18. Multiple ChoiceIn Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).
What is the genotype ratio for a cross between a grey fowl and a white fowl?2 BB: 2 Bb: 0 bb0 BB: 4 Bb: 0 bb0 BB: 2 Bb: 2 b1 BB: 2 Bb: 1 bb - 19. Multiple ChoiceIn Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).
Cross a black fowl with a white fowl. What is the phenotype ratio?4 black: 0 grey: 0 white2 black: 2 grey: 0 white0 black: 4 grey: 0 white0 black: 2 grey: 2 white - 20. Multiple ChoiceIn some carnations, flower color exhibits codominance. Identify the correct genotypes for red, white, and speckled carnations.Red = RR, white = rr, speckled = RrRed = RR, white = WW, speckled = rwRed = RR, white = ww, Speckled = RwRed = RR, white = WW, speckled = RW
- 21. Multiple ChoiceIn some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between 2 speckled flowers and find the genotype ratio.0 RR: 4 RW: 0 WW2 RR: 2 RW: 0 WW1 RR: 2 RW: 1 WW0 RR: 2 RW: 2 WW - 22. Multiple ChoiceIn some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between A speckled flower and a red flower. Find the phenotype ratio.2 red: 2 speckled: 0 white4 red: 0 speckled: 0 white0 red: 4 speckled: 0 white0 red: 2 speckled: 2 white - 23. Multiple ChoicePolygenic traits are influenced by _____.several genesboth by the environment and by geneslinked genescodominant genes
- 24. Multiple ChoiceWhich of the following is not a polygenic trait?skin and hair coloreye colorheightcolorblindness
- 25. Multiple ChoiceWhat would the alleles of a person with type AB blood be?IAIiIBIiIiIinone of these
- 26. Multiple ChoiceA parent with the alleles IAIB could produce offspring with which types of blood?Type AType BType ABType A, Type B, or Type AB
- 27. Multiple ChoiceAn organism's appearance or other detectable characteristic is a what?phenotypegeneallelegenetic variation
- 28. Multiple ChoiceThe entire genetic makeup of an organism or the combination of genes for one or more specific traits is....genetic variationgenotypegeneallele
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