Gel Electrophoresis and DNA Fingerprint

In gel electrophoresis, the smallest DNA fragment will appear

• closest to the starting wells

• farthest from the starting wells

• three quarters away from the starting wells

• it depends on how many fragments there are

Which is the primary purpose of using restriction enzymes in gel electrophoresis?

• It allows the strands of DNA to be cut into various lengths for testing

• It restricts the number of base pairs that can be tested in a sample

• It makes the testing simpler by moving the strands into the gel faster

• It charges the DNA strands

Collection of DNA fragments that can be used to identify genetically unique individuals

• Amplify

• DNA Ladder

• DNA Fingerprint

• DNA Analysis

Answer explanation

DNA Fingerprint is a collection of DNA fragments used to identify unique individuals. It is the correct choice for this question.

Gel Electrophoresis separates molecules by...

• Shape

• Color

• Size

• Atom

Answer explanation

Gel Electrophoresis separates molecules based on their shape and size.

DNA fingerprinting works because

• Most genes are dominant

• All organisms contain RNA

• The most important genes are different among most people

• No two people, except identical twins, have exactly the same DNA 

Answer explanation

DNA fingerprinting works because no two people, except identical twins, have exactly the same DNA.

What is the correct claim for this crime scene?

• Suspect 1 committed the crime.

• Suspect 2 committed the crime.

• Suspect 3 committed the crime.

• Suspect 4 commited the crime.

• Need more evidence to make a claim.

Answer explanation

The correct claim for this crime scene is that Suspect 2 committed the crime.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Pattern of DNA fragments obtained by examining a person's unique sequence of DNA pairs.

• DNA Fingerprint

• Allele

• Chromosome

Answer explanation

DNA fingerprinting is a technique that analyzes a person's unique sequence of DNA pairs, making it the correct choice.

Are the elephants homozygous or heterozygous for the gene shown from marker C?

• both are heterozygous

• one is heterozygous and one is homozygous

• both are homozygous

Answer explanation

The elephants are heterozygous for the gene shown from marker C because they have 2 bands

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Are the elephants homozygous or heterozygous for the gene shown from marker B?

• both are heterozygous

• one is heterozygous and one is homozygous

• both are homozygous

Answer explanation

The elephant on the left is homozygous due to one band at the marker and the elephant on the right is heterozygous due to 2 bands present at the marker

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What applications can gel electrophoresis be used for?

• Parental Testing

• Criminal Investigations

• Sequence Endangered Species DNA

• All of the above

Answer explanation

Gel electrophoresis can be used for parental testing, criminal investigations, and sequencing endangered species DNA. Therefore, the correct answer is 'All of the above'.

Tags

NGSS.HS-LS3-2