Fertilization of an ovum normally occurs in the
A. uterus.
B. ovary.
C. oviduct.
D. vagina.
E. cervix.
C. oviduct.
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If one were to inject cytoplasm containing Bicoid into the middle of a Drosophila egg immediately prior to fertilization, the embryo would
A. try to form anterior structures in the middle of its body. B. try to form posterior structures in the middle of its body. C. not develop at all. D. develop normally. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about bicoid? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Structures in an organism that have no current function are referred to as ____
a. homologous b. vestigial c. mutualistic d. fossils e. convergent
A sterile mule is produced by mating a horse and a donkey. this is an example of _______ reproductive isolation.
A. prezygotic B. allopatric C. sympatric D. outgroup E. postzygotic
Which of the following statements is incorrect about the MMR vaccine?
A. It is given in early childhood. B. It protects against three different viral diseases. C. It contains toxoids. D. It contains attenuated viruses.