The first child conceived using IVF was born
in
a. 1958.
b. 1968.
c. 1978.
d. 1988.
e. 1998
C
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The earliest RNA probably functioned in
A) catalysis. B) self-replication. C) both catalysis and self-replication. D) neither catalysis nor self-replication.
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?
Proteins may have been the first information-storage molecules because they can self-replicate as well as catalyze
reactions.
Indicate whether the statement is true or false.Much of the loss of biologically available nitrogen in the ocean is now thought to be due to a consortium of microbes carrying out ________.
A. the anammox reaction B. nitrogen fixation C. nitrification D. denitrification