Exam 16: DNA: The Indispensable Forensic Science Tool

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A technique for separating molecules through their migration on a support medium while under the influence of an electrical potential B)Different fragment lengths of base pairs that result from cutting a DNA molecule with restriction enzymes C)A genetic locus useful for determining gender D)Small structures outside the nucleus that supply energy to the cell E)Cells derived from the inner cheek lining F)The building blocks of proteins G)A technique that simultaneously detects more than one DNA marker in a single analysis H)An unstained object adjacent to an area on which biological material has been deposited I)A technique for replicating or copying a portion of a DNA strand outside a living cell J)A rod-like structure in the cell nucleus composed of DNA, along which the genes are located K)A repeating unit of DNA consisting of one of four bases-adenine, guanine, cytosine, or thymine-attached to a phosphate-sugar group L)The process of joining two complementary strands of DNA to form a double-stranded molecule M)A region of a DNA molecule that contains short segments of three to seven repeating base pairs N)A short strand of DNA used to target a region of DNA for replication by PCR O)DNA from skin cells transferred onto the surface of an object by simple contact -Restriction Fragment Length Polymorphisms (RFLPs)

Which is NOT a component of a nucleotide?

Longer DNA strands are more stable and less subject to degradation than shorter strands.

Blood in soil must be stored in a clean glass or plastic container and immediately frozen.

________ repeats are regions of a chromosome that contain multiple copies of a core DNA sequence arranged in a repeating fashion.

Means to detect the amelogenin gene are included in commercial STR kits used in crime labs because the gene allows determination of:

The specific proteins produced by a cell are directly related to the:

What are examples of polymers that contain repeating units known as nucleotides?

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A technique for separating molecules through their migration on a support medium while under the influence of an electrical potential B)Different fragment lengths of base pairs that result from cutting a DNA molecule with restriction enzymes C)A genetic locus useful for determining gender D)Small structures outside the nucleus that supply energy to the cell E)Cells derived from the inner cheek lining F)The building blocks of proteins G)A technique that simultaneously detects more than one DNA marker in a single analysis H)An unstained object adjacent to an area on which biological material has been deposited I)A technique for replicating or copying a portion of a DNA strand outside a living cell J)A rod-like structure in the cell nucleus composed of DNA, along which the genes are located K)A repeating unit of DNA consisting of one of four bases-adenine, guanine, cytosine, or thymine-attached to a phosphate-sugar group L)The process of joining two complementary strands of DNA to form a double-stranded molecule M)A region of a DNA molecule that contains short segments of three to seven repeating base pairs N)A short strand of DNA used to target a region of DNA for replication by PCR O)DNA from skin cells transferred onto the surface of an object by simple contact -Polymerase Chain Reaction

DNA is a(n):

Which of the following depicts correct base-pairing in DNA?

CODIS is a national system of:

Collected swabs must NOT be packaged in a wet state.

Which component of DNA forms the backbone of the molecule?

Mitochondrial DNA is arranged in a circular loop of bases, while nuclear DNA is arranged in a continuous strand of bases.

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A technique for separating molecules through their migration on a support medium while under the influence of an electrical potential B)Different fragment lengths of base pairs that result from cutting a DNA molecule with restriction enzymes C)A genetic locus useful for determining gender D)Small structures outside the nucleus that supply energy to the cell E)Cells derived from the inner cheek lining F)The building blocks of proteins G)A technique that simultaneously detects more than one DNA marker in a single analysis H)An unstained object adjacent to an area on which biological material has been deposited I)A technique for replicating or copying a portion of a DNA strand outside a living cell J)A rod-like structure in the cell nucleus composed of DNA, along which the genes are located K)A repeating unit of DNA consisting of one of four bases-adenine, guanine, cytosine, or thymine-attached to a phosphate-sugar group L)The process of joining two complementary strands of DNA to form a double-stranded molecule M)A region of a DNA molecule that contains short segments of three to seven repeating base pairs N)A short strand of DNA used to target a region of DNA for replication by PCR O)DNA from skin cells transferred onto the surface of an object by simple contact -Nucleotide

Which statement is NOT true? Few forensic labs do analysis of mtDNA because:

The separation of STRs using capillary electrophoresis:

DNA ________ are enzymes that assemble a new DNA strand in the proper base sequence determined by the original or parent DNA strand.

Portions of the DNA molecule useful for DNA typing: