Two normal parents have 3 children, one a normal girl, one a normal boy and the other boy with hemophilia. If the affected son marries a girl whose father also had hemophilia, what are the overall chances of having a hemophiliac child? A male from India carries an odd trait for hairy ears that is based on the Y chromosome. As ...continues
1) A 22- year old man was in a motorcycle accident with resultant neck injuries that led to partial paralysis of the upper and lower limbs. Almost immediately his chest felt heavy and he became dyspneic. His pulmonary values: Vital capacity (supine) = 650 ml Minute ventilation (supine) = 6 L/min Respiratory rate (supine) ...continues
1) If the atmospheric pressure is 752 mm Hg, and the partial pressure of nitrogen is 593 mm Hg, the partial pressure of oxygen would be A. 160 mm Hg B. 257 mm Hg C. 159 mm Hg D. 79 mm Hg 2) In nonstrenuous circumstances, after "unloading" oxygen at tissue capillaries, hemoglobin normally remains approximatel ...continues
1. Production of the gonadal sex hormones is A. relatively constant from fetal life to old age B. low until puberty, after which it becomes quite high and remains so until old age C. low until puberty, and remains so until old age D. high during fetal life, low during childhood, high during puberty, and then declin ...continues
A 50 year-old male complained of weakness on the right half of his face, which quickly led to the facial paralysis of this side. He was unable to wrinkle his forehead, smile, show his teeth. He was also unable to close his right eye. Taste perception was distorted over the left anterior portion of the tongue. There was compl ...continues
1. Explain the process that DNA replicates by. Why is it so important that it is carried out in this matter? In explaining the actual process, refer to the possible choices that the scientist considered: conservative, semi-conservative and dispersive. 2. Speciation is a concept that mean one species becoming 2 or more by a pr ...continues
Having a problem explaining a hypottheses why only eukaryotic cells are found in multicellular organisums?
1. The secretion of the bicarbonate component of pancreatic juice is timulated by a. cholecystokinin b. gastrin c. enterocrinin d. secretin e. GIP 2. Calcuate the effective filtration pressure from the following data: Glomerular hydrosstatic pressure = 60 mm Hg Blood colloid osmotic pressure = 28 mm Hg Capsular hydros ...continues
Confused about foetal haemoglobin
I was just wondering... True or false: fetal haemoglobin has a high affinity for oxygen? Many candidates would answer 'true', but the correct answer is 'false'. How come? Don't we all know that the fetus is good at carrying oxygen because the higher affinity of its blood? Yes, exactly it is the fetal blood and not the fetal ...continues
What is the main difference betweem a hormone and a neurotransmitter? Also I have been told that adrenalin is a hormone and a neurotransmitter depending on where it is released from. Is this correct?
