Which of the following correctly lists the components necessary for prokaryotic and eukaryotic transcription?
A. RNA polymerase, general transcription factors, DNA, and RNA nucleotides
B. RNA polymerase, general transcription factors, DNA and DNA nucleotides
C. ribosomes, general transcription factors, DNA and DNA nucleotides
D. ribosomes, general transcription factors, DNA and RNA nucleotides
Answer: A
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Which of the following is true of Agrobacterium tumefaciens?
A. It can enter plants through unbroken leaf tissue. B. It is capable of nitrogen fixation. C. It causes crown gall disease when it carries a tumor inducing (Ti) plasmid. D. All of the choices are correct.
Which of the following have no nuclei?
a. platelets b. leukocytes c. erythrocytes d. platelets and erythrocytes e. leukocytes and erythrocytes
The seeds of angiosperms develop within
A. cones. B. cotyledons. C. petals. D. ovaries.
The glycolytic pathway will ________ after a large meal and ________ during a long period of exercise.
A) slow down . . . slow down B) slow down . . . speed up C) speed up . . . speed up D) speed up . . . slow down E) not change . . . not change