what is the biological function of the first alternative structure mentioned above?
A-form DNA is believed to be one of the adaptations of hyperthermophilic archaeal viruses to harsh environmental conditions in which these viruses thrive.
A-DNA
A-form DNA is believed to be one of the adaptations of hyperthermophilic archaeal viruses to harsh environmental conditions in which these viruses thrive.
the structure found in the cell that contains strands of dna is called a(n) nuclei what is its full form? Deoxyribonucleic acid what is base pairing? In a DNA double helix, each type of nucleobase on one strand bonds with just one type of nucleobase on the other strand, his is called complementary base pairing. are there any alternative structures? Yes, DNA exists in many possible conformations that include A-DNA, B-DNA, and Z-DNA forms how is it replicated? The two strands are separated and then each strand's complementary DNA sequence is recreated by an enzyme called DNA polymerase.
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A-DNA [SEP] Biological function
Dehydration of DNA drives it into the A form, and this apparently protects DNA under conditions such as the extreme desiccation of bacteria. Protein binding can also strip solvent off of DNA and convert it to the A form, as revealed by the structure of several hyperthermophilic archaeal viruses, including rod-shaped rudiviruses SIRV2 and SSRV1, enveloped filamentous lipothrixviruses AFV1, SFV1 and SIFV, tristromavirus PFV2 as well as icosahedral portoglobovirus SPV1. A-form DNA is believed to be one of the adaptations of hyperthermophilic archaeal viruses to harsh environmental conditions in which these viruses thrive. It has been proposed that the motors that package double-stranded DNA in bacteriophages exploit the fact that A-DNA is shorter than B-DNA, and that conformational changes in the DNA itself are the source of the large forces generated by these motors.