Blueprint of life question help!

[sian_pal]

My question I'm struggling with is:
"Outline how artificial insemination and artificial pollination may alter the genetic composition of a population" (6 marks)
Thank you!

[studybuddy7777]

Hey sian_pal welcome to atarnotes! Im more than happy to answer your question.

"Outline how artificial insemination and artificial pollination may alter the genetic composition of a population" (6 marks)

Because it is a 6 mark question its probably best to start off with definitions of each one
Artificial Insemination (AI) Involves collecting semen from selected animals, then artificially introducing this into female of the same species.
Artificial Pollination (AP) The process involves removing stamens, collecting pollen to be used and transferring donor pollen to stigma. Mendel used AP in his pea plant experiment.
Now you need examples: I used the Irish Potato Famine (1840's) which was a fungal disease that killed 1 million people (AP)
For AI just use the example of a women's egg and a donors sperm- or a donors egg and a donors sperm!

I promise i will post more in about 15 mins, brb.

[studybuddy7777]

Ok im back

For AI to actually answer the question this is the points I would bring up:
- increases the number of offspring (usually limited to one)
- sperm can be stored and then fertilised, even if the sperm donor has died.
- changes the genetic composition of animals eg a few selected genes become common in the herd, other alleles are lost. Also can result in loss of genetic variation (could be serious if eg disease resistance is lost)

For AP I would bring up:
- This process may alter the genetic composition - less variation
- It is possible to create now species by this method eg Wheat pollination with rye  produces an infertile hybrid with desired traits - grows in cold climates, low nutrient soils. Chemicals can cause it to double its chromosome number and so offspring is then fertile (able to reproduce)
Note: This question does not ask for cloning (the third dash of this dot pt) but if you had to then I would definitely compare how clones are normally sterile (unable to reproduce)

Lol dont mind me including heaps of examples, you only really need one.
Thanks for using atarnotes and I hope all of this helps!!

[xorichard]

You legend, Studybuddy 

[studybuddy7777]

You legend, Studybuddy 

No problems Im trying to cure my ANAS (Atar notes addiction syndrome) so ill try to be on less and try to study more, but that probs wont happen lol