Suppose the L and M genes are on the same chromosome but separated by 100 map units. What fraction of the progeny from the cross L M / l m × l m / l m would be L m / l m?
A) 10%
B) 25%
C) 50%
D) 75%
E) 100%
B) 25%
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Bioluminescent microorganisms are found in which of the following groups?
A) Firmicutes B) Thaumarchaeota C) Gammaproteobacteria D) Verrucomicrobia
The formation of amino acids under abiotic
conditions was important because they serve as a. a supply of structural units for proteins. b. enzymes to catalyze reactions. c. subunits in the formation of DNA. d. subunits in the formation of RNA. e. subunits for the formation of lipids
Grinding of food is a function of the
a. incisors. b. canines. c. premolars. d. molars. e. molars and premolars
You are a nurse serving as a medical volunteer in a refugee camp. Due to extreme poverty, political instability, and displacement, most individuals at the camp have not received any preventative medical care, including vaccinations. While providing care
to a young woman in about the fourth month of pregnancy, she mentions that several children, including her toddler, suffered from a mild illness last month. Her toddler had a low fever, a runny nose, and a rash that started on his face then moved downward. The illness resolved quickly in all the children. What illness might the children have had and why should you be concerned? A) measles; the child may develop shingles at a later time B) rubella; the unborn child of the exposed mother may be stillborn or suffer from birth defects C) measles; the children may be more susceptible to other infections D) rubella; it is a mild, self-limiting disease so there are no further concerns E) hand, foot, and mouth disease; the virus may re-activate at a later time