Which of the following statements about a gram-negative cell wall is FALSE?
a. It maintains the shape of the cell
b. It includes a thin layer of peptidoglycan
c. It functions as an endotoxin
d. It contains teichoic acid
Answer: d. It contains teichoic acid
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Processed pseudogenes are useful for testing Darwin's theory of descent with modification because they ________
A) can be utilized for examining phylogenetic relationships among asexually reproducing organisms B) demonstrate phylogenetic relationships of divergence because they do not accumulate mutations C) accumulate mutations at a constant rate, and thus older processed pseudogenes should be shared by a greater variety of species D) are distributed in organisms that are found in similar environments
The ascending tracts of the spinal cord are responsible sensory and motor functions of the peripheral nervous system that control the skeletal muscles.
Answer the following statement true (T) or false (F)
Answer the following questions true (T) or false (F)
1. Plants perform only photosynthesis, not cellular respiration. 2. Most plant leaves appear green because they absorb green light. 3. Photosynthesis forms ATP using oxidation-reduction reactions similar to those seen in the electron transport chain of respiration.
A mutation in which part of a chromosome is transferred to a non-homologous chromosome is referred to as:
a. deletion. b. inversion. c. translocation. d. fission. e. fusion.