Brucellosis is
A) All of these choices are correct
B) A zoonosis
C) Associated with pathogen in the blood.
D) Seen in the patient as a fluctuating fever, with headache, muscle pain, and weakness.
E) An occupational illness of people that work with animals.
A) All of these choices are correct
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Suppose the protein specified by bicoid was injected into Drosophila embryos, so that a high concentration was present everywhere in the embryo. What might be the result of such an experiment?
A) The embryos would grow larger than normal. B) The embryos would show no development of posterior regions. C) The embryos would show no development of anterior regions. D) The embryos would halt their development.
A particular segment formed during normal Drosophila development
A. will always form the same structures in adult flies. B. can form different structures, depending on positional information received by the segment during early development. C. is only important to early developmental stages. D. will express different transcription factors in different individuals. E. will become ectoderm, endoderm, or mesoderm.
Mendel's laws derive from
A) mitosis. B) meiosis. C) processes unique to pea plants. D) calculus and algebra.
A golfer wants a new set of clubs to improve her game. In an experiment, she goes to the driving range and compares the distance she hits a bucket of golf balls with drivers of different materials in the head before making her purchase decision. In this simple experiment, the standardized variable is the
A. wind direction when the experiment took place. B. type of material used to make the golf ball. C. all of these except the type of material used to make the club. D. angle the ball was hit by the head surface of the club. E. force generated by her swing, when hitting the ball.