Pahoehoe. Pahoehoe is the second most abundant type of lava flow. Pahoehoe lava is characterized by a smooth, billowy, or ropy surface. Pahoehoe flows tend to be relatively thin, from a few inches to a few feet thick.In map-view the flows tend to be narrow and elongate.ther types of lavas include block lava, which has a surface of large angular blocks, and rhyolite lava. These two types are associated with lava chemistries other than basalt.
The major component of the bacterial genome is one double-stranded, circular DNA molecule.. Source: Biology, Sixth Edition Campbell and Reece.eptidoglycan is a polymer of interlocking chains called monomers. The b â¦ ackbone molecule is composed of two glucose derivatives (amino sugars) abbreviated NAM and NAG which are connected by interpeptide bridges.
Genetic information in bacteria is stored in the sequence of DNA in two forms, that is bacterial chromosome and plasmid. The following are the properties of a bacterial chromosome. 1  Location: Within nucleoid region, not surrounded by nuclear envelope. 2  Number: 1 chromosome each cell.