Genetic recombination refers to the process by which two DNA  molecules exchange genetic information. The three types of genetic  recombination are crossing over, conservati â¦ ve site-specific  recombination and transpositional recombination.
This produces a crystal lattice, which is commonly known as 'ice'. Ice floats because it is about 9% less dense than liquid water. In other words, ice takes up about 9% more space than water, so a liter of ice weighs less than a liter water. The heavier water displaces the lighter ice, so ice floats to the top. One consequence of this is that lakes and rivers freeze from top to bottom, allowing fish to survive even when the surface of a lake has frozen over.
Highlights: âBoth floats go by Vilander Bluff, which is probably one of the most pristine bluffs on the Meramec,â said J.R. Isom, ranch owner. âItâs up to 150 feet high, with two caves in it, and bald eagles around it in late fall and spring. This float is good for all ages, from small kids to senior citizens.