DNA Profiling

Why did all the rabbits have so many fragments in common?

• All the rabbits in this lab were closely related

• All rabbits have 99% of DNA in common

• Only a small portion of the chromosomal DNA was examined

• The GTA probe only examined related fragments

Tags

NGSS.HS-LS3-1

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 

Tags

NGSS.HS-LS3-2

In gel electrophoresis, the largest 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

The database used for the storage of DNA profiles is:

• FBI

• NIBIN

• IAFIS

• CODIS

What do the STR analysis results show?

• Father #1 is the baby's father

• Father #2 is the baby's father

• Neither man is the baby's father

• The results are inconclusive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If one person has two alleles that are the same for a specific STR, then that person is considered to have:

• rare occurring alleles.

• heterozygous genotypes.

• homozygous genotypes.

• frequently occurring alleles.

What material is used to isolate and cut DNA into fragments?

• restriction enzymes

• polymerase chain reaction (PCR)

• electrophoresis

• short tandem repeat (STR)

Name a method of separating molecules, such as DNA, based on their size.

• restriction enzymes

• polymerase chain reaction (PCR)

• electrophoresis

• short tandem repeat (STR)

__________ are variable regions of non-coding DNA that repeat.

• Restriction enzymes

• Polymerase chain reaction (PCR)

• Electrophoresis

• Short tandem repeat (STR)

In preparation for an electrophoresis procedure, enzymes are added to DNA in order to

• convert the DNA into gel

• cut the DNA into fragments

• change the color of the DNA

• produce longer sections of DNA