2.10 Adaption And Selection

Question 0

Mutations

Answer 0

When bases are deleted/replaced/added by chance and randomly

Question 1

Adaption

Answer 1

When organisms adjust to the environment through natural selection

Question 2

Conjugation

Answer 2

Bacteria transfer dna…donor cell forms projection to recipient cell, replicates plasmid, linear, transfers partially

Question 3

Horizontal gene transmission

Answer 3

Species to species

Question 4

Vertical gene transmission

Answer 4

Generation to generation

Question 5

Conjugation discovery

Answer 5

1 needed biotin, 2 needed threonine. Mixed together and grown without either, small colonies produced

Question 6

Antibiotic

Answer 6

Substance producing by living organisms to destroy or inhibit growth of microorganisms

Question 7

Osmosis Lysis

Answer 7

How antibiotics work. Prevent cell walls being formed by inhibiting peptide cross links. Water enters, cells burst

Question 8

Resistance

Answer 8

Chance mutations. Eg enzyme created that breaks down penicillin, alleles in plasmid so can be HGT

Question 9

TB

Answer 9

Long corpse, cocktail, patients feel better and stop, resistant multiplies because all non resistant dead

Question 10

MRSA

Answer 10

Close together and vunerabke people

Question 11

Implications of antibiotics

Answer 11

Viruses, not completing courses, stockpiling, animal use