13-1

Question 1

Hybridization

Answer 1

Burbank developed more that 800 varieties of plants

Question 2

Inbreeding

Answer 2

The continued breeding of individuals with similar characteristics.

Question 3

Polyploid

Answer 3

Many sets of chromosomes

Question 4

Genetic engineering

Answer 4

Making changes in the DNA code of a living organism

Question 5

Restriction enzymes

Answer 5

Each one cuts DNA at a specific sequence of nucleotides

Question 6

Gel Electrophoresis

Answer 6

A mixture of DNA fragments is placed at one end of a porous gel

Question 7

Recombinant DNA

Answer 7

Because they are produced by combining DNA from different sources

Question 8

Polymerase chain reaction

Answer 8

Allows biologist to do exactly that

Question 9

Plasmid

Answer 9

The foreign DNA is first joined to a small, circular DNA molecule

Question 10

Genetic maker

Answer 10

A gene that makes it possible to distinguish bacteria that carry the plasmid

Question 11

Transgenic

Answer 11

Meaning that they contain genes from other organisms

Question 12

Selective breeding

Answer 12

Allowing only those animals with desired characteristics to produce the next generation, humans have produced the many different breeds on display at a dog show