What is the genetic material found in HIV?
A. RNA
B. protein
C. carbohydrate
D. lipid
E. DNA
A. RNA
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The scientific method has limitations. It can only answer objective questions based on quantitative facts from observable, measurable, and repeatable experiments. It cannot answer subjective questions based on qualitative beliefs or opinions such as the presence of deities and ghosts or who makes the best doughnut. Could the scientific method theoretically be used to answer the question, "Does throwing a virgin into a volcano prevent it from erupting?" Support your answer.
What will be an ideal response?
Which of the following bacterial structures is incorrectly matched with a function?
A. Ribosomes - protein synthesis B. Nucleoid - hereditary material C. Plasmids - contain genes essential for growth and metabolism D. Inclusions - excess cell nutrients and materials E. Cytoplasm - dense, gelatinous solution
Oversecretion of growth hormone in adulthood results in
a. pituitary gigantism. b. acromegaly. c. pituitary dwarfism. d. diabetes insipidus. e. cretinism.
Which of the following is a disadvantage of using Bt to control insects?
A. Bt does not accumulate in the soil or in nontarget animals. B. Though not well documented it is possible for horizontal gene flow to introduce Bt genes into other plants. C. The toxin can only be activated in target insects so it is nontoxic to mammals. D. Bt is easily degraded in the natural environment.