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Genetic assignment

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Question;Genetic assignmentQuestion 1.1. In hamsters black coat color (B) is dominant to white coat color (b). A homozygous black hamster,BB, is mated with a white (bb)hamster. What will be the genotype ratio of their offspring? (Points: 1)100% black100% Bb1/2 black, 1/2 white1/2 Bb and 1/2 bbQuestion 2.2. In hamsters black coat color (B) is dominant to white coat color (b). A homozygous black hamster,BB, is mated with a white (bb)hamster. What will be the phenotype ratio of their offspring? (Points: 1)100% black100% Bb1/2 black, 1/2 white1/2 Bb and 1/2 bbQuestion 3.3. In hamsters black coat color (B) is dominant to white coat color (b). A homozygous black hamster,(BB) is mated with a heterozygous black (Bb)hamster. a) What will be the genotype ratio of their offspring? (Points: 1)100% black100% Bb1/2 black, 1/2 white1/2 BB and 1/2 BbQuestion 4.4. In hamsters black coat color (B) is dominant to white coat color (b). A homozygous black hamster,(BB) is mated with a heterozygous black (Bb)hamster. a) What will be the phenotype ratio of their offspring? (Points: 1)100% black100% Bb1/2 black, 1/2 white1/2 BB and 1/2 BbQuestion 5.5. In hamsters black coat color (B) is dominant to white coat color (b). A heterozygous black hamster, is mated with a heterozygous black hamster, a hybrid cross. a) What will be the genotype ratio of their offspring? (Points: 1)1/2 BB and 1/2 Bb1/4 BB, 1/2 Bb, and 1/4 bb100% black3/4 black to 1/4 whiteQuestion 6.6. In hamsters black coat color (B) is dominant to white coat color (b). A heterozygous black hamster, is mated with a heterozygous black hamster. a) What will be the phenotype ratio of their offspring? (Points: 1)1/2 BB and 1/2 Bb1/4 BB, 1/2 Bb, and 1/4 bb100% black3/4 black to 1/4 whiteQuestion 7.7. In hamsters black coat color (B) is dominant to white coat color (b). A heterozygous black hamster, is mated with a white hamster. a) What will be the genotype ratio of their offspring? (Points: 1)1/2 BB and 1/2 Bb1/2 Bb and 1/2 bb1/4 BB, 1/2 Bb, 1/4 bb100% BbQuestion 8.8. In hamsters black coat color (B) is dominant to white coat color (b). A heterozygous black hamster, is mated with a white hamster. a) What will be the phenotype ratio of their offspring? (Points: 1)100% black1:1 black to white3:1 black to whiteall whiteQuestion 9.9. In humans brown eyes is dominant to blue eyes. a) If a brown-eyed man married a blue-eyed woman and they had 4 kids, all with brown eyes, can we definitely conclude that the man was homozygous for brown eyes? Explain your answer. (Points: 1)10. a) In a paternity suit a woman claims that Jim is the father of her child. The child has type O blood. What blood type would Jim have to have for us to be certain that he was NOT the father? (Remember that in blood types type O is recessive, what does that tell you about the child's genotype? the parents?) See Unit 9 reading for discussion of blood types and inheritance. Also under chapter 11 on the textbook website, MediaLab investigation 2 on blood types. (Points: 1)Type AType BType ABType OQuestion 11.11. In a paternity suit a woman claims that Jim is the father of her child. The child has type AB blood. What blood type would Jim have to have for us to be certain that he was NOT the father? (Points: 1)Type AType BType ABType OQuestion 12.12. Can a type O child have a father with type A blood? (Points: 1)yesnoQuestion 13.13. Explain question 12. (Points: 1)Question 14.14. Can a type AB child have a father with type A blood?(Points: 1)yesnoQuestion 15.15. Can a type B child have a father with type O blood? (Points: 1)yesnoQuestion 16.16. Can a type O child have parents one with type A and the other with type B blood? (Points: 1)yesnoQuestion 17.17. Explain your answer to #16(Points: 1)Question 1.1. Which organism did Mendel use to work out the laws of segregation and independent assortment? (Points: 1)the fruit flyNeurosporathe garden peathe chickenE. coliQuestion 2.2. Diploid organisms (Points: 1)have corresponding alleles on homologus chromosomesare usually the result of the fusion of two haploid gameteshave two sets of chromosomeshave pairs of homologous chromosomesall of theseQuestion 3.3. If R is domiannt to r, the offspring of the cross of RR with rr will (Points: 1)be heterozygousdisplay the same phenotype as the RR parentdisplay the same phenotype as the rr parenthave the same genotype as the RR parentmore than one of the above is correctQuestion 4.4. Mendel found that the organisms expressing a recessive trait (Points: 1)were pure-breedingappeared in the second generation of a cross between two parents with contrasting traitsdisappeared after crossing with a purbred dominant traitcould be produced even if neither parent expressed the traitall of these are true statements about recessive phenotypesQuestion 5.5. If tall (D) is dominant to dwarf (d) and two heterozygous parents, Dd, are crossed, then what kind of offspring will be produced? (Points: 1)all intermediate formsall tallall dwarfone half tall, one half dwarf3/4 tall, 1/4 dwarfQuestion 6.6. The F2 phenotypic ratio of a monohybrid cross, dominant to recessive, is (Points: 1)1:12:19:3:3:11:2:13:1Question 7.7. If short hair (L) is dominant to long hair (l), and after crossing a short hair with a long hair and you have after several matings 24 short hair and 26 long hair offspring, what can you conclude about the short hair parent's genotype? (Points: 1)LLLlllno conclusion can be madeQuestion 8.8. If a child belonged to blood type AB, he or she could not have been produced by which set of parents? (Points: 1)Type A mother and type B fatherType AB mother and type O fatherType AB mother and type B fatherType AB mother and type AB fatherQuestion 9.9. A color blind woman and a man with normal vision whose father was colorblind, have a son. Colorblindness, in this case, is caused by an X-linked recessive gene. If only the male offspring are considered, the probability that their son is colorblind is (Points: 1)25%50%75%100%0%Question 10.10. Red-green colorblindness is an X-linked recessive trait in humans. What is the probability that a colorblind man and a woman with normal vision, whose father was colorbind, will have a colorblind daughter? (Points: 1)25%50%75%100%0%

 

Paper#62553 | Written in 18-Jul-2015

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