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- The diagram below illustrates the results of electrophoresis of DNA sequences obtained from a family of two adults and three children, and amplified using PCR. The bands represent short repeating sequences of variable length. Results for another female (X) are included for comparison. Father Mother Child Child Child X 1 2 3 Origin―Explain the 3 features of DNA markers.3 features of DNA markers
- Biology = genetics please do Challenge problem 3 Now, figure out the complementation groups. This shows how many genes are involved in this pathway. Some of the mutant classes in the previous problem must contain more than one complementation group (gene) For example class 2 is defined by mutants 1,3,4,6, and 7. These mutants may, or may not, all be in the same gene. Complementation testing will help you know if they are, or are not, in the same gene. So there are actually additional steps between some of the letters. For example, maybe instead of XàY, it is really X->F->G->Y.Variation in _____ is the basis of variation in traits. a. karyotype b. the DNA sequence c. the double helix d. chromosome numberA major difference between hereditary information in eukaryotes and prokaryotes is: a. in prokaryotes, the hereditary information is distributed among individual, linear DNA molecules in the nucleus. b. in eukaryotes, the hereditary information is encoded in a single, circular DNA molecule. c. in prokaryotes, the hereditary information is usually distributed among multiple circular DNA molecules in the cytoplasm. d. in eukaryotes, the hereditary information is distributed among individual, linear DNA molecules in the cytoplasm. e. in eukaryotes, the hereditary information is distributed amoung individual, linear DNA molecules in the nucleus.
- . Among adults with Turner syndrome, it has beenfound that a very high proportion are genetic mosaics.These are of two types: In some individuals, themajority of cells are XO, but a minority of cellsare XX. In other Turner individuals, the majorityof cells are XO, but a minority of cells are XY.Explain how these two patterns of somatic mosaicscould arise.Part 1: Mendelian Genetics 1. For each of the genotypes Purple Flowers are Dominant to white flowers PP - Purple Pp - Purple pp-White Straight hair is dominant to curly hair below, list all possible phenotypes. Brown eyes are dominant to blue eyes Straight - HH, Hh Curly - hh BB- Bb bb- 2. For each of the phenotypes below, list all possible genotypes. (Remember: use only 1 letter to designate a trait, big and small per scenario) Pointed heads are dominant to round heads Black fur is dominant to white fur Pointed - Round - FF - Ff- ff - Jagged leaves are dominant to smooth leaves Jagged - Smooth -3. What are the genotypes possible for a person who has: A blood? B blood? O blood? AB blood? 4. A man with type AB blood is married to a woman also with type AB blood. Show the cross. What proportion of their children will have: A blood? B blood? O blood? AB blood? 5. A man has type B blood (genotype I³I®) is married to a woman with type O (ii) blood. Show the cross. What proportion of their children will have: 1. A blood? 2. B blood? 3. O blood? 4. AB blood? 6. A woman with type A blood (genotype I^i) is married to a type B person (genotype Iºi). Show the cross. What proportion of their children will have: A blood? B blood? О blood? AB blood?
- 1. What advantages do anonymous DNA markers afford for genetic mapping as opposed to traditional allelic markers associated with visible phenotypes? What are the disadvantages of anonymous DNA markers for mapping? 2. Would you be more likely to find SNPs in the protein-coding or in the noncoding DNA of the human genome?5 The pedigree shown below is from a family with albinism. Albinism is a genetic condition that occurs when the body is unable to make or distribute melanin, a pigment that gives color to skin, hair, and the iris of the eye. The pedigree shown below is from a family with albinism. Analyze the pedigree to determine whether albinism is inherited in a dominant or recessive fashion, and then apply the correct genotypes to individuals 1-1, 1-2, II-2, and II-5. = 11 ||| 1 aa 1 2 3 Aa 1 3 2 4 6 A_ 7 5 8 6 9 AA 10 по по Aa male female affected individual1-Differentiate between DNA footprinting and Fingerprint with examples. 2-Explain the importance of mapping of genes on chromosomes