Hoogsteen base pairing:
A. can result in the formation of a tetraplex DNA from stretches of G residues.
B. causes additional paring of an A to an existing A-T pair such that the T is bound to both Abases.
C. can result in triplex DNA formation in stretches of DNA containing alternating purines and pyrimidines.
D. results in triplex DNA in which all three strands are composed of purines only.
E. can result in the formation of triplex DNA within long sequences containing only pyrimidines or only purines in a given strand.
E
You might also like to view...
What happens when the cAMP-CAP complex binds the CAP site near the lac promoter?
A. Transcription rate decreases. B. Transcription rate increases. C. RNA polymerase binds to the promoter. D. RNA polymerase binds to the promoter and transcription rate decreases. E. RNA polymerase binds to the promoter and transcription rate increases.
After a photosynthetic organism uses energy for its own basic functions, such as growth and reproduction, _________ is the energy that remains for the next trophic level.
a. the grazing food web b. net primary productivity c. gross primary productivity d. biomagnification
What happened during the Cambrian explosion?
A. Animals first evolved from single-celled organisms. B. There was a large asteroid impact. C. There was a rapid diversification of animal forms. D. Many large volcanoes erupted.
In the lysogenic cycle _____.
a) host DNA is destroyed and viral DNA is replicated b) a bacterium replicates without passing viral DNA to its daughter cells c) viral DNA is destroyed and host DNA is replicated d) a bacterium divides once before the lytic cycle is initiated e) viral DNA is replicated along with host DNA