bio help!! (1 Viewer)

[-pkaur-]

Explain how the development of antibiotic resistance in insect pests is modern examples of natural selection?

 

[callum21]

Using the mosquito as an example, there is a chemical called DDT which a number of years ago was very effective in killing mosquitos however there was a very small percentage of the population that was immune to this chemical, as a result of genetic variation, and this population survived and passed this favourable characteristic onto their offspring and within a few years, most of the population of mosquitos had a resistance to DDT as those who didnt died.

 

[-pkaur-]

tsk tsk tsk...dont you ever listen in bio para??? lol jokes

have you finished this yet? :mad1:

woman i doubt u knew da answer ...lolz
hahahah...nearly done just have to do the diagrams

 

[-pkaur-]

Using the mosquito as an example, there is a chemical called DDT which a number of years ago was very effective in killing mosquitos however there was a very small percentage of the population that was immune to this chemical, as a result of genetic variation, and this population survived and passed this favourable characteristic onto their offspring and within a few years, most of the population of mosquitos had a resistance to DDT as those who didnt died.

thanks... thats a pretty good example

 

[-pkaur-]

and you call me a nerd...
chillax para its due in like...6 days

lolz...yeahh im nearly finished