Bio 156 lab 7 genetics - 916 Words

1. List whether the student was positive or negative for each characteristic and include whether the characteristic is dominant or recessive. (6 points) a. Blood type- O b. Widows peak- Negative, resessive. c. Free ear lobes- Positive, dominant. d. Tongue rolling- Positive, dominant. e. Hitchhikers thumb- Negative, dominant. f. Left thumb dominance- Negative, reseesive. g. Little finger bend- Positive, dominant. h. PTC taster- Negative, resessive. i. Mid-digit hair- Negative, recessive. j. Facial dimples- positive,dominant. k. Freckles- Positive, dominant. l. Cleft chin- negative, resseive. 2. Can the student tell from the blood type if the student is heterozygous or homozygous? Explain. (5 points) Yes, knowing your blood type would†¦show more content†¦11. From the hemophilia procedure: (4 points) a. XHXH,XHY,XhY,XHXh b. What is the probability of males having hemophilia? 50% c. How many females would have hemophilia? 25% d. How many carriers would there be? one 12. Explain why more males tend to suffer from X-linked disorders than females. (5 points) Males tend to suffer from X-linked disorder more often than females because females have more X chromosomes than males. 13. The student has a friend that knows the student is taking biology, and she is confused about her blood type. Her blood type is O, but her dad is A and her mother is B. She asks the student if it is possible for her parents to have a child that is O. Explain the answer to her. (5 points) It is possible and would mean that both of her parents have an O allele making their blood type AO and BO. Both O alleles were passed onto her making her blood type O. 14. In a flower garden, the gardener has purple and white pansies. He notices that a new pansy has sprouted. When it finally flowers, the pansy is lavender. Explain how this happened. (5 points) This would happen in a case incomplete dominance. The white pansies nor the purple ones genes dominated making a 50/50 offspring. 15. With a botanist friends help, the gardener decides to cross the lavender pansy with the white pansy. Will this result in any purple pansies? Explain. (5 points) 16. (Application) How might the information gained from thisShow MoreRelatedConjugation and Transposition in Escherichia Coli2748 Words   |  11 PagesAbstract The purpose of this experiment was to study the transfer of genetic information on plasmid F’lac by using Escherichia coli. Plasmid transfer was measured by using two different methods. The first one was by using selection and contraselection with three antibiotics: streptomycin(which was replaced by naladixic acid for the second part of the experiment),ampicillin and kanamycin and the second one by using a colour indicator ( X-gal). As significant results, the percentage of transfer forRead MoreModeling Of Engineering And Biomedical Sciences9738 Words   |  39 Pagesviable alternatives to time consuming and costly experimental means. 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