Sentence examples for dna is usually from inspiring English sources

During transcription, only one strand of DNA is usually copied.

After a cell dies, the DNA is usually degraded although fragments of meaningful sequence can survive in special conditions.

Detection and quantification of virus derived DNA is usually performed against external controls or external standards.

RNA is chemically similar to DNA, but where DNA is usually double-stranded — hence, the double helix — RNA is usually single-stranded.

In the linear chromosomes of eukaryotes, the DNA is usually tightly constrained at various points by proteins, allowing the intervening stretches to be supercoiled.

Strictly speaking, it refers to the regulation of gene expression by the chemical modification of DNA, or of the histone proteins in which DNA is usually wrapped.

Viruses with single-stranded genomic DNA are usually small, with limited genetic information.

At low resolution, by contrast, the sequence-dependence features of DNA are usually neglected and molecules with thousands of base pairs are treated as ideal elastic rods.

DNA was usually extracted from frozen samples of pectoral muscle, liver or heart, but a few extractions were from blood (1%) or small pieces of skin/toe pads from museum skins (2%).

General protocols for extracting genomic DNA are usually sufficient.

A useful feature of the system is that both orientations of the inserted DNA are usually obtained.