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.
A genome is the entire complement of an organismâs genetic material. This may refer to the DNA of a gamete, organelles (mitochondria and chloroplasts), organism, or species. The human nuclear genome is composed of 46 chromosomes (23 pairs).