(5)Baldness is an X-recessive linked trait. Baldness is epistatic to curly hair which is dominant over straight hair. The gene which determines whether the hair is curly or straight is on an autosome. A bald male has a wife with straight hair and curly headed daughter. His daughter has children with a male with straight hair. The chance that one of their male offspring has a full head of curly hair is 1/2 for the purposes of this question, assume that if someone is bald, they will not have a full head of curly head even though in real life they might when they are younger. 6. When researchers studied hypertension (high blood pressure) in twins, they found a concordance rate of 36% for identical twins and 8% for fraternal twins. True or False: Since the concordance rate for identical twins is much less than 50%, genetics does not play a role in hypertension.

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Respiratory Infections

Respiratory infections are infectious diseases of the respiratory tract that are mostly caused by bacteria and viruses. They cause infections of the throat, sinuses, airway path, and lungs. Respiratory infections are typically divided into two types: upper tract respiratory infection and lower tract respiratory infection.