During the elongation phase of transcription, how is RNA polymerase able to "read" the DNA sequence of bases? O a. The RNA polymerase rotates like a corkscrew around the DNA helix - reading the sequence of bases while the two DNA strands remain completely hydrogen-bonded together. O b. The two DNA strands are temporarily reversed, so that the sugar-phosphate backbones are next to each other and the bases point outwards, allowing RNA polymerase to read the base sequence. O c. An enzyme complex unwinds and separates the two DNA strands down the full length of the gene (~1000-3000 bases), so that the RNA polymerase can travel smoothly along the template strand. O d. The RNA polymerase can separate the two strands of DNA as it travels, creating a small "window" between the strands, so it can read the template strand and create the complementary RNA copy.
During the elongation phase of transcription, how is RNA polymerase able to "read" the DNA sequence of bases? O a. The RNA polymerase rotates like a corkscrew around the DNA helix - reading the sequence of bases while the two DNA strands remain completely hydrogen-bonded together. O b. The two DNA strands are temporarily reversed, so that the sugar-phosphate backbones are next to each other and the bases point outwards, allowing RNA polymerase to read the base sequence. O c. An enzyme complex unwinds and separates the two DNA strands down the full length of the gene (~1000-3000 bases), so that the RNA polymerase can travel smoothly along the template strand. O d. The RNA polymerase can separate the two strands of DNA as it travels, creating a small "window" between the strands, so it can read the template strand and create the complementary RNA copy.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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Transcribed Image Text:During the elongation phase of transcription, how is RNA polymerase able to "read" the DNA sequence of bases?
O a. The RNA polymerase rotates like a corkscrew around the DNA helix - reading the sequence of bases while the two DNA strands remain
completely hydrogen-bonded together.
O b. The two DNA strands are temporarily reversed, so that the sugar-phosphate backbones are next to each other and the bases point outwards,
allowing RNA polymerase to read the base sequence.
O c. An enzyme complex unwinds and separates the two DNA strands down the full length of the gene (~1000-3000 bases), so that the RNA
polymerase can travel smoothly along the template strand.
O d. The RNA polymerase can separate the two strands of DNA as it travels, creating a small "window" between the strands, so it can read the
template strand and create the complementary RNA copy.
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