Chapter 7 Flashcards

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1
Q

sugar

A

monosaccharide

essential structural component of living cells and source of energy help make up DNA

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2
Q

“Innocence Project”

A

has freed more than 300 people from prison since 1992 through DNA profile databases

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3
Q

CODIS

A

combined DNA index system provided by the FBI that runs DNA databases

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4
Q

complementary

A

fitting together

two strands of DNA are said to be complementary in that A always pairs with T, and G always pairs with C

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5
Q

STRs

A

short tandem repeats

sections of a chromosome in which DNA sequences are repeated

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6
Q

DNA

A
Deoxyribonucleic acid
the molecule of heredity, common to all life forms, that is passed from parents to offspring
molecule of inheritance
common to all life forms
instruction for organism's structure
located in the nucleus
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7
Q

coding regions

A

DNA sequences that contain instructions for making proteins

99% identical between different individuals

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8
Q

thymine

A

pairs with adenine

pyrimidine

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9
Q

adenine

A

pairs with thymine in DNA

purine

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10
Q

guanine

A

pairs with cytosine

purine

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11
Q

cytosine

A

pairs with guanine

pyramine

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12
Q

phosphate

A

chemical component of nucleic acids

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13
Q

double helix

A

the spiral structure formed by two strands of DNA nucleotides bound together

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14
Q

semi-conservative replication

A

each newly made DNA molecule has one original and one new strand of DNA

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15
Q

DNA profile

A

a visual representation of a person’s unique DNA sequence

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16
Q

gel electrophoresis

A

a laboratory technique that seperates fragments of DNA by size

17
Q

DNA “backbone”

A

made of the link between sugar and phosphates

18
Q

DNA replication

A

The natural process by which cells make an identical copy of a DNA molecule. 1. H-bonds break and DNA helix unwinds 2. DNA polymerase creates a complementary strand

19
Q

noncoding regions

A

“junk DNA”