Unit 4: Domestication Flashcards
1
Q
What are 4 symptoms of ‘Domestication syndrome’ ?
A
1) Animals are smaller in size
2) Removal of horns
3) Large variation in coat colour
4) Less aggressive behaviour
2
Q
What is quicker, natural or artificial selection ?
A
- Artificial selection is shorter as only takes a few decades
- Natural selection is a very long process
3
Q
What is a quantitative trait ?
A
Traits that are associated with more than one gene/chromosome location
4
Q
What is a positive of artificial selection ?
A
Extreme performance on one or limited number or traits
5
Q
What is a negative of artificial selection ?
A
Can have negative effect on other traits
6
Q
How is genetic variation affected by artificial selection ?
A
Level of genetic variation within population is low
