D. Experiments of Hershey & Chase Amazingly, not everyone was convinced by the experiments of Avery and his coworkers. For those folks, it was the experiments of Hershey and Chase (1952) that finally convinced them that DNA was the genetic material and not protein.
http://www.people.vcu.edu/~elhaij/bio105/geneticmaterial.html
Bacteria consist of only a single cell, but don't let their small size and seeming simplicity fool you. They're an amazingly complex and fascinating group of creatures. Bacteria have been found that can live in temperatures above the boiling point and in cold that would freeze your blood. They eat everything from sugar and starch to sunlight, sulfur and iron.
http://www.microbeworld.org/types-of-microbes/bacteria
The second section goes along with the paper Transformed Bacteria. In each section, there will be questions shown in blue. Try to answer these questions as you read. They will be the basis of our discussion this week.
http://www.people.vcu.edu/~elhaij/bio105/geneticmaterial.html
Electron microscopy suggested that bacterial viruses carry on a similar process. A virus attaches to a host bacterium and injects its genes through its channel-like tail. In 1952, Alfred Hershey showed that DNA, alone, is responsible for the reproduction of new viruses within an infected cell.
http://dnaftb.org/18/
Bacteria fall into a category of life called the Prokaryotes (pro-carry-oats). Prokaryotes' genetic material, or DNA, is not enclosed in a cellular compartment called the nucleus. Bacteria and archaea are the only prokaryotes. All other life forms are Eukaryotes (you-carry-oats), creatures whose cells have nuclei.
http://www.microbeworld.org/types-of-microbes/bacteria
A portion of the virus that is injected into the cell must include the genetic material because the cell's metabolism is altered such that a lot of viral proteins and nucleic acids are made, and new virus particles are assembled within a few hours.
http://www.people.vcu.edu/~elhaij/bio105/geneticmaterial.html
Bacteria. Many of us know bacteria only as “germs,” invisible creatures that can invade our bodies and make us sick. Few know that many bacteria not only coexist with us all the time, but help us do an amazing array of useful things like make vitamins, break down some garbage, and even maintain our atmosphere.
http://www.microbeworld.org/types-of-microbes/bacteria
There are other alternatives. Maybe proteins code for themselves! This week (2/8 - 2/12), we will discuss some key experiments that prove DNA is the genetic material and next week we will do one of these experiments ourselves.
http://www.people.vcu.edu/~elhaij/bio105/geneticmaterial.html
Concept 18 Bacteria and viruses have DNA too. Microscopes proved the existence of single-celledbacteria. However, there was debate about whether bacteria had genes and what attributes they may have in common with higher life forms. This debate was settled in the 1940's, when it was discovered that bacteria have sex. During the process of conjugation, genes are exchanged through a mating channel that links two bacteria.
http://dnaftb.org/18/
Also like plants, they give off oxygen. Other bacteria absorb food from the material they live on or in. Some of these bacteria can live off unusual foods such as iron or sulfur. The microbes that live in your gut absorb nutrients from the digested food you've eaten.
http://www.microbeworld.org/types-of-microbes/bacteria
what genetic material does bacteria have?
A bacteria has Prokaryotes' genetic material, or DNA. Bacteria have Prokaryotes' genetic material, or DNA.