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Question: Joseph and Jenny have come to a genetic counselor to determine their chances of having a child with myotonic dystrophy, a degenerative muscular disorder that appears at about 50 years of age and is inherited with the autosomal dominant allele D. The autosomal recessive allele d does not contribute to the development of the disease. Both Joseph and Jenny are in their thirties and neither shows any signs of the disease at present. Jenny's grandmother (her father's mother) has the disease. Jenny's grandmother's father (Jenny's great-grandfather) did not have the disease. There is no history of myotonic dystrophy in Joseph's family or in Jenny's mother's or paternal grandfather's family.Question: Draw the pedigree that shows the familial relationships described in the paragraph above. Use a circle to denote a woman, a square to denote a man and a filled symbol to show individuals who have myotonic dystrophy. In this pedigree, you are attempting to trace the inheritance of the D allele. Beneath each symbol, show the genotype of each individual as far as it is known. You may use blanks to indicate that part of the genotype is unknown, if applicable.Question: What is the probability that Jenny is a carrier of the D allele?Question: What is the probability that Joseph and Jenny will have a child with myotonic dystrophy?Question: Out of 3 children born to Joseph and Jenny, what is the probability that 1 will have myotonic dystrophy?Question: Out of 5 children born to Joseph and Jenny, what is the probability that at least one will have myotonic dystrophy?
Assume that you have two lines of plants: one is A/A; B/B, the other is a/a; b/b. You cross the two and then self the F1 plants. With respect to these 2-genes:
Dr. Don McPhail and his colleagues hypothesized that the existence of the benthic and limnetic sticklebacks is the result of allopatric speciation.
Discuss why is the ovulate cone of a pine designed to be so much more durable than the staminate cone? Find the advantage of having seeds rather than spores?
The cell walls of bacteria, fungi, and plant cells and the extracellular matrix of animal cells are all external to the plasma membrane. Which of the following is a characteristic of all of these extracellular structures.
Eastern tent caterpillars live in sizable groups in silk nests, or tents, which they construct in cherry trees. They are among the first insects to become active in the spring, emerging very early in the season-a time while daily temperature fluctuat..
Acetylcholine acts at the G-protein-linked receptor on heart muscle to make the heart beat more slowly by the effect of the G protein on a K+ channel. Which one or more of next would enhance this effect of acetylcholine.
Illustrate what is meant by motivation. What types of non-financial reward might a company employ to motivate employees.
The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar through pour plate method. The plates were incubated aerobically for 48 hours at 37C.
Discuss how to figure out a cDNA sequence from an amino acid sequence? This is usually in context of determining an appropriate oligonucleotide probe.
A solution containing 80% cytosine and 20% uracil was used to create synthetic RNAs. A bacterial cell free system produced proteins using these mRNAs in the following proportions.
Result of mitosis is that daughter cells end up with the similar number of the chromosomes just as the parent cell. This is obtained through the chromosome duplication followed by the cell division.
Due to a spinal injury, a patient has lost pain and temperature sensation on the left half of his body from the waist down. Where is his injury? Where will you expect loss of tactile sensation in this patient.
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