The first step in the scientific process is:
a. setting up a laboratory.
b. conducting experiments.
c. making observations.
d. inducing a testable hypothesis.
e. using deductive reasoning.
C
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The process of replica plating was designed to test if mutations occurred in response to a selective agent or if mutations were naturally present in the population before selection
Indicate whether the statement is true or false
A male sea lion is very large in comparison to its female counterparts and has a large sagittal crest on its head. What is this an example of?
a. Sexual dimorphism b. Type specimen c. Sexual variety d. Isolating mechanism
Which of these is a tRNA? The figure shows a process of translation. Each letter marks a definite structure.
A marks the thread, to which the ribosome is attached. This thread is the base of the translation. B marks the structure, which is bonded with Gly and is located inside the ribosome. C marks the structure, in which the translation happens. D marks the thread, which is formed by the translation. Letter E marks the structures, which are constituent elements of the forming thread.
Which statement is TRUE regarding ATP synthesis in oxygenic phototrophs?
a. Cyclic photophosphorylation does not occur in oxygenic phototrophs. b. Cyclic photophosphorylation occurs only when there is sufficient NADH-reducing power. c. Noncyclic photophosphorylation does not occur in oxygenic phototrophs. d. Noncyclic photophosphorylation occurs only when there is sufficient NADH-reducing power.