BIOL121 : Fact Sheet - Duchenne Muscular Dystrophy (DMD) - Hypothalamus

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Fact Sheet A ssignment Help

TASK1 Describe how the hypothalamus controls the release of hormones from the: A. anterior lobe of pituitary gland B. posterior lobe of the pituitary gland In your answer, give specific examples and clearly name any hormones involved.

TASK2 Duchenne muscular dystrophy (DMD) is recessive sex-linked disorder, which causes muscle degeneration and premature death. A couple is pregnant with a boy and neither has DMD. The father’s family has no history of DMD, but the mother is unsure of her genetic family history as she was adopted. The mother decides to take advantage of some of the new genomic screening tests and learns information about a large number of her genes. She finds that she is a carrier of the DMD-affected allele. A. What is the mother’s genotype? Explain your reasoning. B. What is the father’s genotype? Explain your reasoning. C. What is the likelihood of the male foetus having DMD? Use a Punnett square to explain your answer.

TASK3 Describe the changes in volume and pressure inside the chest cavity during a normal, quiet exhalation. Explain why these changes are occurring, and the effect upon airflow.