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.
Bacterial genomes can range in size anywhere from about 130 kbp to over 14 Mbp. Recent advances in sequencing technology led to the discovery of a high correlation between the number of genes and the genome size of bacteria, suggesting that bacteria have relatively small amounts of noncoding DNA.A striking discovery by Cole et al.ecent advances in sequencing technology led to the discovery of a high correlation between the number of genes and the genome size of bacteria, suggesting that bacteria have relatively small amounts of noncoding DNA. A striking discovery by Cole et al.