AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of equipment is used show the differences and similarities in DNA sequences among various types rodents?
A
restrictive enzyme technology and gel electrophoresis
B
microscopes and DNA staining technology
C
spectrometry and gas chromatography
D
blood typing equipment
Explanation: 

Detailed explanation-1: -Electrophoresis is a laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge. An electric current is used to move the molecules through a gel or other matrix.

Detailed explanation-2: -After the DNA has been digested with one or more restriction enzymes, it is separated by size using gel electrophoresis. A radioactive probe is then used to identify certain fragments of DNA that may differ between individuals.

Detailed explanation-3: -Restriction enzymes are used to cut the DNA prior to performing gel electrophoresis. Restriction enzymes are proteins that cut DNA in specific locations. They can be used to cut DNA apart to paste in new genes in genetic engineering or to test the sequence of different DNA molecules.

Detailed explanation-4: -Each restriction enzyme moves along a DNA molecule until it finds a specific recognition sequence in the DNA. The enzyme cuts the double-stranded DNA, resulting in DNA fragments.

There is 1 question to complete.