Which type of soil has the best oxygen and water penetration to support plant growth?
a. sand
b. silt
c. loam
d. clay
e. humus
ANSWER: c
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Blood consists of all of the following EXCEPT
a. plasma. b. platelets. c. white blood cells. d. adipose cells. e. red blood cells
The molecule that stores the set of instructions of a cell and directs everything a cell does is ________
Fill in the blank(s) with correct word
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. Both the location of the start site and the direction of transcription can be established. B. It allows RNA polymerase to distinguish between the template strand and the coding strand of the DNA molecule. C. Binding sites for both the core polymerase and holoenzyme are provided. D. Binding sites for both the holoenzyme and ATP are provided. E. The transcription bubble can be properly formed.
DNA synthessis
What will be an ideal response?