Bee-pollinated flowers
A. are predominately blue or yellow.
B. are red.
C. have little odor.
D. All of the choices apply.
Answer: A
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Which of the following is true of the flo gene?
a. heterozygotes are twice as likely to be obese b. the gene is expressed in the brain c. people who are obese are lacking the flo gene d. most children in the United States who are obese have two copies of the flo gene e. flo genes are X-linked, thus boys are more likely than girls to be obese
Which of the following would be least likely to form a fossil?
a. a marine organism b. an organism living in a lake c. an animal with an exoskeleton d. an animal with an endoskeleton e. an organism in the tropical rain forest
In a DNA double helix an adenine of one strand always pairs with a(n) _____ of the complementary strand, and a guanine of one strand always pairs with a(n) _____ of the complementary strand.
Fill in the blank(s) with the appropriate word(s).
Tomato plants that have pest-resistance genes inserted into the genome can be called
A) genetically engineered organisms. B) Only the second and third answer choices are correct. C) transgenic organisms. D) cloned organisms. E) All of the above answer choices are correct.