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Gene Cloning

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27 Terms

1

Gene Cloning

Creating a copy of an organism or molecule from another entity

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2

Restriction Enzymes

DNA-cutting enzymes that cleave phosphodiester bonds in DNA strands

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3

Plasmid DNA

Circular, self-replicating DNA found in bacteria, used to carry and clone other DNA fragments

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4

Recombinant DNA Technology

Technology that allows for the cutting and joining of DNA fragments, and insertion into a plasmid

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5

Bacteriophage vectors

clone DNA fragments up to 15 kb; infect the bacterial species

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6

Restriction Site

Specific sequence of bases in DNA recognized and cut by restriction enzymes

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7

Palindrome

Sequence that reads the same forward and backward on opposite strands of DNA

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8

Sticky Ends

Overhanging single-stranded ends of DNA fragments created by certain restriction enzymes

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9

Blunt Ends

Double-stranded ends of DNA fragments created by certain restriction enzymes

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10

Recombinant DNA

DNA formed by joining together DNA fragments from different sources

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11

Transformation

Process of inserting foreign DNA into bacterial cells

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12

Antibiotic Selection

Process of selecting transformed bacteria by growing them on plates with different antibiotics

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13

Blue-White Selection

Method to identify recombinant bacteria based on the color of colonies on a plate

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14

Dna Libraries

Collections of cloned DNA fragments from a particular organism

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15

Genomic DNA Libraries

Libraries containing fragments of an organism's entire genome

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16

cDNA Libraries

Libraries containing complementary DNA synthesized from mRNA

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17

Polymerase Chain Reaction (PCR)

Technique for amplifying specific DNA sequences in a short period of time

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18

Taq DNA Polymerase

DNA polymerase isolated from Thermus aquaticus, used in PCR due to its heat stability

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19

Cloning PCR Products

Rapid and effective method of cloning DNA fragments amplified by PCR

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20

PCR primers

Primers are created to match the beginning and end sequence of certain sections

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21

These are short DNA sections that set the boundaries for what will be copied

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22

DNA probes are

short, single-stranded segments of DNA used in DNA hybridization experiments.

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23

multiple cloning site (MCS)

site that can be recognized by multiple restriction enzymes

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24

cloning vector

DNA molecules that can carry foreign DNA into a host cell and replicate there.

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25

gel electrophoresis process

enzymes are used to chop DNA from sample into fragments, fragments are then placed into wells; electrical current is run through the gel and fragments are attracted depending on charge; smallest/lightest/most charged move far, thus creating banding pattern used to identify and compare

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26

DNA ligase

enzyme that chemically links DNA fragments together

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27

bacterial artificial chromosome (BAC)

A large plasmid that acts as a bacterial chromosome and can carry inserts of 100,000 to 300,000 base pairs.

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