Which of the following is a stop codon of translation?
a. UCA
b. UUG
c. UGA
d. UAC
c. UGA
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Glycolysis is a metabolic process that is done by all cells. However, not all cells make use of another metabolic process called the Krebs cycle. What does this tell you about the evolution of these processes?
A. As a metabolic process, glycolysis likely evolved prior to the Krebs cycle B. As a metabolic process, the Krebs cycle likely evolved prior to glycolysis C. Both the Krebs cycle and glycolysis likely evolved at the same time Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about evolution and time? What other information is related to the question? Choose Answer Do you have all necessary information to determine the relative importance of glycolysis and the Kreb’s cycle? 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?
Answer the following statements true (T) or false (F)
1. Flowers, fruits, and endosperm are defining characteristics of the angiosperms. 2. Lignophytes are seed plants that have become extinct whereas spermatophytes are those that are still living. 3. Terminal complexes in the cellular membranes of plants produce cellulose and are known as rosettes. 4. The K/T event was the transition of plants from water to land. 5. Pteridophytes and seed plants collectively are known as euphyllophytes.
Which of the following would not be considered part of the peripheral nervous system?
a. the eyes b. the spinal cord c. afferent neurons d. the ears e. efferent neurons
The cytoskeleton has several primary functions. The first and most obvious is that it acts as an interior skeleton that supports the rest of the cell. What is another function of the cytoskeleton?
A) It provides a communication network whereby chemo-electrical signals can be sent from one area of the cell to another. B) It creates a durable outer covering to increase the strength and rigidity of the cell. C) It provides a series of tracks along which vesicles can move throughout the cell. D) It connects one cell to another.