The effect of nalidixic acid on deoxyribonucleic acid (DNA) synthesis in Bacillus subtilis cells infected with bacteriophage SPO1 was studied. Nalidixic acid had little inhibitory effect on SPO1 DNA synthesis at concentrations that drastically inhibited B. subtilis DNA synthesis. Inhibition of DNA synthesis, appropriate to the concentration used, was imposed within 1 min after addition of nalid...

Maize RNA polymerase utilizes heated deoxyribonucleic acid more effectively than native deoxyribonucleic acid as a template for ribonucleic acid synthesis. A ribonucleic acid-deoxyribonucleic acid hybrid accumulates in the presence of heated deoxyribonucleic acid. The amount of product formed with either native or heat-denatured deoxyribonucleic acid does not exceed the amount of deoxyribonucle...

Two deoxyribonucleic acid (DNA)-dependent ribonucleic acid (RNA) polymerases (I, II) have been solubilized from isolated Saccharomyces cerevisiae nuclei. The enzymes can be separated by chromatography on O-diethylaminoethyl Sephadex. Both enzymes are active with high-molecular-weight nuclear yeast DNA, although RNA polymerase I has a higher affinity for polydeoxy-adenylic-thymidylic acid and RN...

Although DNA is associated with complex biological phenomena and has many physicochemical properties not easily explained, there is no doubt that the molecule consists to a large extent of the regular, and in some ways simple structure (1-3), derived from x-ray diffraction. We will describe here briefly new data on the s t ruc turethe x-ray diffraction measurements and molecular model building ...

<span lang="EN-US">Due to security threats on data transmission, a combination of cryptography and steganography techniques are becoming increasingly popular widely adopted. Correspondingly we have also witnessed most the literature uses systems development that depends deoxyribonucleic acid (DNA). However, they not sufficient accommodate needs nowadays. Therefore, propose new cryptograph...

<span lang="EN-US"><span lang="EN-US">Deoxyribonucleic </span>acid (DNA) motif finding (discovery/mining) in biological chains is the most recent challenging and interesting trend bioinformatics. It represents a crucial phase bioinformatics systems related to unravelling secrets of gene functions. Despite efforts made date produce robust algorithms, DNA remains difficult task ...

Stationary chicken embryo fibroblasts exposed to Rous sarcoma virus (RSV) remained stably infected for at least 5 days, but they did not release infectious virus or become transformed until after cell division. These infected stationary cells did not contain avian leukosis virus group-specific antigens or ribonucleic acid (RNA) hybridizable to deoxyribonucleic acid (DNA) made by the RSV endogen...

VIIFuture Directions Bibliography Glossary DNA Deoxyribonucleic acid. Molecule that encodes the genetic information of cellular organisms. Operon Set of functionally related genes with a common promoter (" on switch "). Plasmid Small circular DNA molecule used to transfer genes from one organism to another. RNA Ribonucleic acid. Molecule similar to DNA, which helps in the conversion of genetic ...

The RecA protein of Escherichia coli is the prototypic deoxyribonucleic acid (DNA) strand exchange protein. It assembles on single-stranded DNA to form a helical nucleoprotein filament that is the active species for all RecA protein-dependent functions. This protein– DNA complex is responsible for three mutually exclusive functions: DNA recombination, induction of the DNA-damage SOS response an...