topic 7- genetic control

Question 1

mutagen

Answer 1

a chemical or physical agent that increases the rate of mutations

Question 2

mutagenesis

Answer 2

a process which changes the genetic information of an organism and results in a mutation

Question 3

recombinant DNA technology

Answer 3

involves the transfer of a ‘desirable’ gene from on species and inserting it into another

Question 4

vector

Answer 4

a DNA molecule used to carry foreign genetic information into another cell and both the plasmids and artificial chromosome are used as vectors in recombinant DNA technology

Question 5

artificial chromosome

Answer 5

a synthetic chromosome that consists of DNA fragments in a host chromosome

Question 6

origin of replication

Answer 6

the one point where DNA synthesis begins

Question 7

restriction site

Answer 7

contains target sequences of bases of DNA where specific restriction endonuclease can cut the DNA

Question 8

selectable marker genes

Answer 8

they enable the scientist to determine whether a host cell has taken up the recombinant plasmid or not