biotech and bioengineering

Question 1

what do scientists use different techniques for? 1.

Answer 1

extract DNA from cells

Question 2

what do scientists use different techniques for? 2.

Answer 2

cut DNA into smaller pieces

Question 3

what do scientists use different techniques for? 3.i

Answer 3

to identify the sequence of bases in a DNA molecule

Question 4

what do scientists use different techniques for? 4.

Answer 4

make unlimited copies of DNA

Question 5

this is called this when biologists make changes in the DNA code of a living organism.

Answer 5

genetic engineering

Question 6

dna extraction

Answer 6

the cells are opened and the DNA is seperated from the other cell parts

Question 7

cutting DNA

Answer 7

most DNA molecules are too large to be analyzed..

Question 8

…so biologists cut them into smaller peices using..

Answer 8

restriction enzymes

Question 9

each restriction enzymes cuts DNA at a specific…

Answer 9

sequence

Question 10

dna fragments are placed at one end of a porous gel and an electric voltage is applied to the gel

Answer 10

gel electrophoresis

Question 11

when the power is on, the negatively charged DNA molecules move towards the…

Answer 11

positive end

Question 12

can also be used to

Answer 12

locate and identify one particular gene in an individuals genome

Question 13

steps of..

Answer 13

gel electrophoresis

Question 14

first, restriction enzymes..

Answer 14

cut dna into fragments

Question 15

a what is applied to the gel

Answer 15

electric voltage

Question 16

the smaller the DNA fragment..

Answer 16

the faster and farther it will move across the gel

Question 17

synthetic sequences can be joined to what sequences using enzymes that splice DNA together

Answer 17

natural

Question 18

these enzymes also make it possible to take a gene from

Answer 18

one organism and attach it to the DNA of another organism