lecture 15

Question 1

domestication

Answer 1

when a wild-type animal incurs changes that ultimately benefits humans

changes in the genotype that are then seen in the phenotype

Question 2

Dmitry Belyaev’s Experimental Goals in Farm Fox

Answer 2

1. Domestication is accompanied by changes in morphology, physiology, and behavior
2. these changes are common across a wide range of different domesticated species
3. where do these changes come from and why are they similar?

Question 3

experiment outcomes of fox farm

Answer 3

1. the window of bonding with humans opened earlier and remained open longer (sound, sight, fear, response)
2. domesticated foxes began to look different in phenotype
3. by the 8th-10th generation, there was significant coat color changes
4. 15th-20th generation had shorter legs and tails
5. some tame foxes bred outside their usual season but all the pups died