Homologous traits:
a. are shared by two or more species because some evolutionary process (usually natural selec-tion) has independently fashioned the similar traits in each species.
b. are found in two or more species because those traits are from a common ancestor.
c. Both of the above
d. Neither of the above
B
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An active continental margin is found: a. where the leading edge of a continental crust always subducts
b. within a tectonic plate and on a wide continental margin. c. where the leading edge of a continental crust collides with ocean crust. d. in an area of active erosion and weathering.
Some of the functions of the eukaryotic organelles are performed in bacteria by the:
A. capsule. B. cell wall. C. flagella/cilia. D. plasma membrane. E. nucleoid area.
Two 6-base sequences are present in bacterial promoters: TATAAT (located 10 nt upstream from the start site) and TTGACA (located 35 nt upstream from the start site). What is the significance of the fact that these two base sequences are different?
A. Binding sites for both the holoenzyme and ATP are provided. B. It allows RNA polymerase to distinguish between the template strand and the coding strand of the DNA molecule. C. The transcription bubble can be properly formed. D. Binding sites for both the core polymerase and holoenzyme are provided. E. Both the location of the start site and the direction of transcription can be established.
Which of the following produces the most ATP during aerobic respiration?
A. Substrate level phosphorylation B. Electron transport chain and chemiosmosis C. Glycolysis D. TCA cycle E. Fermentation