The specific sequence of nucleotides in the DNA to which the RNA polymerase binds is the
A. regulatory region.
B. promoter region.
C. sigma region.
D. core region.
B
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Four elements make up more than 96% of the mass of most living organisms. Which of the following
is NOT one of those four elements?
a. sodium b. carbon c. oxygen d. nitrogen e. hydrogen
What are macrophages, and what are their functions?
What will be an ideal response?
The brain stem contains the midbrain, the pons, and the medulla oblongata.
Answer the following statement true (T) or false (F)
A student tossed a coin five times and observed results of four tails and one head. He concluded that when a coin is tossed, there is an 80% chance of getting a tail and a 20% chance of getting a head. The conclusion would be more valid if
a. only two tosses of the coin had been used. b. the weight of the coin had been taken into consideration c. a greater number of tosses had been used d. the surface of the coin landed on had been taken in consideration.