DNA polymerase assembles new strands
a. in a 5' to 3' direction only.
b. in a 5' to 3' direction building one strand and a 3'
to 5' direction building the other stand.
c. in a 5' to 3' direction building the first half of a
strand and a 3' to 5' direction building the second
half of a strand.
d. in a 3' to 5' direction building the first half of a
strand and a 5' to 3' direction building the second
half of a strand.
e. in a 3' to 5' direction on the “old” 3' to 5' strand.
Answer: a
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A. It converts GTP to cGTP. B. It acts as a secondary nucleotide messenger. C. It is a sensor kinase. D. It is an autoinducer.
Would the first cells most likely have used DNA as their genetic (information storage) molecule?
A. yes B. no C. It's difficult to know.
The genetic code is universal in nuclear DNA from bacteria to mammals
Indicate whether the statement is true or false
If a woody plant in dormancy is placed in a
greenhouse so that only one limb is exposed to the cold winter temperatures, eventually the a. whole plant breaks dormancy and starts growing. b. parts of the plant that were inside the greenhouse start blooming. c. limb exposed to the low temperature dies. d. limb exposed to the low temperature breaks dormancy. e. limb exposed to the low temperature never forms seeds.