Ch. 7: DNA Profiling

Question 1

An alternative form of a gene

Answer 1

Allele

Question 2

Nuclear cell structure that contains DNA in humans

Answer 2

Chromosome

Question 3

The FBI’s computerized criminal DNA databases as well as the software used to run these databases

Answer 3

Combined DNA Index System (CODIS)

Question 4

Pattern of DNA fragments obtained by analyzing a person’s unique sequences of noncoding DNA

Answer 4

DNA fingerprint (profile)

Question 5

A method of separating molecules, such as DNA, according to size

Answer 5

Electrophoresis

Question 6

Portion of a gene that is expressed

Answer 6

Exon

Question 7

Segment of DNA that codes for a trait

Answer 7

Gene

Question 8

All the DNA found in human cells

Answer 8

Genome

Question 9

Portion of a gene that is not expressed

Answer 9

Intron

Question 10

Picture of the paired homologous chromosomes and sex chromosomes in a cell

Answer 10

Karyotype

Question 11

A method of amplifying (duplicating) minute amounts DNA evidence for use in investigations

Answer 11

Polymerase chain reaction (PCR)

Question 12

Region of repeating DNA within an intron that is highly variable from person to person

Answer 12

Polymorphism

Question 13

Sequence of DNA added to trigger replication of a specific section of DNA

Answer 13

Primer

Question 14

“Molecular scissors”; a molecule that cuts a DNA molecule at a specific base sequence

Answer 14

Restriction enzyme

Question 15

DNA fragment that restriction enzymes create, as in preparation for gel electrophoresis

Answer 15

Restriction fragment

Question 16

Sequence of repeating bases in noncoding regions of DNA that are used in DNA profiling

Answer 16

Short tandem repeats (STR)