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Forensics > Chapter 15 > Flashcards

Chapter 15 Flashcards

1
Q

The fluid portion of unclotted blood

A

Plasma

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2
Q

The molecules that carry the body`s genetic information

A

DNA

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3
Q

The liquid that seperates from the blood when a clot is formed

A

Serum

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4
Q

A substence, usually a protein, that stimulates the body to produce antibodies against it

A

Antigen

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5
Q

A protein in the blood serum that destroys or inactivates a specific antigen

A

antibody

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6
Q

Blood serum that contains specific antibodies.

A

antiserum

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7
Q

The clumping together of red blood cells by the action of an antibody

A

agglutination

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8
Q

An enzyme found in high concentrations in semen

A

Acid phosphatase

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9
Q

An abnormally low sperm count

A

oligospermia

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10
Q

The absence of sperm; sterility in males

A

Aspermia

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11
Q

The female sex chromosome

A

X-chromosome

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12
Q

The male sex chromosome

A

Y-chromosome

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13
Q

The physical location of a gene on a chromosome

A

Locus

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14
Q

Any of several alternative forms of a gene located at the same point on a particular pair of chromosome

A

Allele

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15
Q

Having 2 identical allelic genes on two corresponding positions on a pair of chromosomes

A

Homozygous

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16
Q

Having 2 different allelic genes on two corresponding positions on a pair of chromosomes

A

Heterozygous

17
Q

A repeating unit of DNA consisting of 1 of 4 bases attached to a phosphate- sugar group

A

nucleotide

18
Q

A technique for replicating or copying a portion of a DNA strand outside a living cell

A

Polymerase chain reaction (PCR)

19
Q

A region of a DNA molecule that contains short segments of 3-7 repeating base pairs

A

Short tandem repeats(STR)

20
Q

A technique that simultaneously detects more than one DNA marker in a single analysis

A

Multiplexing

21
Q

Small structures outside the nucleus that supply energy to a cell

A

Mitochondria

22
Q

The outer layer of skin cells

A

epithelial cell

23
Q

DNA from skin cells transferred onto the surface of an object by simple contact

A

touch DNA

24
Q

Fewer than 18 DNA-bearing cells

A

low copy number

25
Q

AN unstained object adjacent to an area on which biological material has been deposited

A

Substrate control

26
Q

Cells from the inner cheek

A

buccal cells

Forensics (14 decks)

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