During the elongation stage of transcription ____
a. DNA nucleotides are added to the transcript
b. the transcript grows in the 5'®3' direction
c. transcription factors recruit RNA polymerase to the template strand
d. the double helix remains single-stranded after being used as a template
e. RNA polymerase binds to the promoter region
ANSWER: b
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Cytochromes contain a heme group similar to that in hemoglobin. The iron atom (Fe) in the center of the group can be oxidized and reduced. If someone was suffering from iron deficiency anemia, what stage of cellular respiration would be most affected?
A. Glycolysis B. The Krebs cycle C. The electron transport chain D. Fermentation Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about redox reactions and when they take place during cellular respiration? What other information is related to the question? Choose Answer Do you have all the information needed to determine which stage of cellular respiration would be most affected by an iron deficiency? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What is the variance for the mother's and daughter's heights?
A. Mothers: 42.21Daughters: 24.26 B. Mothers: 41.32Daughters: 23.71 C. Mothers: 43.78 Daughters: 24.26 D. Mothers: 42.21 Daughters 23.78
Which of the following groups of photosynthetic bacteria are capable of oxygenic photosynthesis?
A. The cyanobacteria B. The purple bacteria C. The green bacteria D. All of the choices are correct.
Which of these nitrogenous bases is found in DNA but not in RNA?
a. cytosine b. uracil c. thymine d. adenine e. guanine