Bio Lab 8/9

Where is DNA located

In eukaryotic cells

Where is the DNA blueprint

Nucleus

What are the steps of the DNA extraction process

Mashing, dish soap, cold alcohol

Mashing

Physically breaks the tough center wall (in plant cells)

Dish soap

Soap breaks down grease on dirty dishes, just like it breaks down the lipid cell membranes and nuclear envelope releasing the DNA into the solution

Cold alcohol

DNA dissolves in water but not in cold alcohol. adding alcohol causes the DNA to precipitate so we can see it

How do we analyze the DNA once we have it

Gel Electrophoresis

DNA molecules will have what charge

negative electrical charge

when DNA molecules are placed in an electrical feild they will naturally be pulled towards

positive electrode

As DNA gets pulled through the agarose gel is seperates based on

size (length)

Vertebrates

animals that possess a backbone

invertebrates make up what percent of animal life

95%

body symmetry

the fundemental architecture of an animals body

Asymmetry

No distinct shape or equal halves

Radial symmetry

body parts are arranged around a central point

Bilateral symmetry

the body can be divided down the middle into equal left and right halves

arthropoda

largest group of animals on earth they are characterized by having a hard exoskeleton and jointed appendages