20. biotechnology an genetic modifcation

Question 1

biotechnology

Answer 1

using organisms usually microorganisms to produce required substances

Question 2

genetic modification

Answer 2

changing the genetic material of an organism by removing, changing or inserting individual genes

Question 3

biofuel

Answer 3

a fuel that is made by mixing ethanol with petrol

Question 4

pectinase

Answer 4

an enzyme that is used to digest pectin,( increasing the quantity of juice that can be extracted from fruit and clarifying the juice)

Question 5

fermenter

Answer 5

a vessel in which microorganisms can be grown to produce a required product

Question 6

restriction enzymes

Answer 6

enzymes that cut DNA at specific points and leave a short length of unpaired bases at each end

Question 7

sticky ends

Answer 7

lengths of unpaired bases on one strand of dna molecule

Question 8

ligase

Answer 8

an enzyme that joins two dna molecules together