True or False? A mitochondrial disease is passed to offspring via the father.
Answer the following statement true (T) or false (F)
False
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Unlike inspiration, expiration is a passive act because no muscular contractions are involved. Expiration, however, depends on two factors. Which of the choices below lists those two factors?
A) the recoil of elastic fibers that were stretched during inspiration and the inward pull of surface tension due to the film of alveolar fluid B) the expansion of respiratory muscles that were contracted during inspiration and the lack of surface tension on the alveolar wall C) the negative feedback of expansion fibers used during inspiration and the outward pull of surface tension due to surfactant D) combined amount of CO2 in the blood and air in the alveoli
The genotypes and phenotypes that result from a cross of AA and Aa (A = normal
pigmentation and a = albinism) are A) phenotypes - all normal; genotypes - 50% homozygous dominant and 50% heterozygous. B) phenotypes - 50% normal and 50% albino; genotypes - all heterozygous. C) phenotypes - all albino; genotypes - 50% heterozygous and 50% homozygous recessive. D) phenotypes - 75% norma and 25% albino; genotypes - 75% heterozygous and 25% homozygous.
A ______________ and _________________ are commonly required prior to surgery and anesthesia
Fill in the blank(s) with correct word
What is the difference between rods and cones with respect to color vision?
-Cones contain retinal attached to different forms of opsin. -Rods contain vitamin K-derived opsin, whereas cones contain vitamin D-derived opsin. -Cones contain opsin attached to different forms of retinal. -Rods contain different forms of opsin depending upon their location in the retina.