List the two adaptations plants have evolved to enhance their survival on land.
What will be an ideal response?
Vascular systems, spores.
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Among the actions listed below, which are involved in PCR, and in what order? Extension Initiation Denaturation Termination Annealing
A. Initiation, extension, termination B. Denaturation, annealing, extension C. Denaturation, extension, termination D. Initiation, denaturation, extension E. Annealing, initiation, termination
Which of the following would occur from a mutation in the gene's promoter region?
A. The sequence of the mature mRNA would change. B. The ability of pre-mRNA to be properly spliced would change. C. The ability of mRNA to be translationally regulated would change. D. The amino acid sequence of the translated protein would be altered. E. The rate of transcription may increase or decrease.
In what part of the cell does a polar signaling molecule bind its receptor? A nonpolar signaling
molecule? Explain your reasoning. What will be an ideal response?
Which of the following is a false statement about plant secondary metabolites?
A. Some of them can cross the placenta during pregnancy. B. They are too unpredictable to use in pharmaceutical research. C. Some can be used to treat human diseases. D. The activity of certain medicines is due to secondary metabolites. E. Some can be poisonous to humans.