Genetic Modification

Question 1

How do scientists produce a genetically modified bacterium that produces penicillin

Answer 1

Use restriction enymes to remove gene and cut plasmid

Use ligase to join dna molecules together
Cut gene from genome of fungus and extract plasmid from bacteria
Insert recombinant plasmid back into bacteris

Question 2

Why r restruction enzymes used in genetic engineerin

Answer 2

To create sticky ends
Cut dna at recognition sites

Question 3

Explain how bacterial cell can be genetically modified to glow in the dark

Answer 3

Phosphorescent gene isolated from dna of the organism using enzymes to expose sticky ends

Plasmid removed from cell and cut open to expose sticky ends

The p gene inserted into bacterial cell match sticky ends use enzyme ligas3
Plasmid inserted back unto bacterisl cell and grown on a petri dish each cell will express the gene

Question 4

Describe selective breedin

Answer 4

Best charcteristic named
Parents bred together
Offspring with characteristic selected to breed