Multiple independent experiments have demonstrated that phytochrome helps trigger seasonal change responses in plants such as changing color and loosening of leaves. Plants have the ability to respond to seasonal changes in their surroundings. This statement is an example of
A. inductive reasoning.
B. deductive reasoning.
C. a theory.
D. a hypothesis.
E. an experiment.
Answer: C
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The translation of an mRNA begins at the start codon. What is the sequence of this codon?
a. AUG b. UGG c. AGU d. UAG
If auxin transport was limited at shoot tips, what would occur?
A. Leaf primordia formation would be limited to the cells where auxin was transported. B. No new leaves would form. C. It would result in increased formation of leaf primordia at many locations. D. It would have no effect on leaf formation.
A tumor that has gained the ability to spread throughout the body, generally with life-threatening consequences, is known as a _____ tumor.
a. benign b. polyp c. malignant d. growth-promoting
How does the TATA box facilitate eukaryotic transcription?
a. The TATA box joins amino acids to the polypeptide chain. b. It provides an anchor point for basal transcription factors. c. It helps to unwind the DNA template before transcription. d. The TATA box signals the end of a protein gene sequence.