Topic 4

Question 1

consequences in phenotype due to domestication

tameness

Answer 1

not all species can be tamed, and some easier than others; aggression and behavioral changes

Question 2

consequences in phenotype due to domestication

incr species variety

Answer 2

incr breeding –> new/more breeds and varieties within a species

Question 3

consequences in phenotype due to domestication

body size and conformation

Answer 3

( structural arrangement)

more variety in ex weight. gigantism, dwarfism, tail length etc

Question 4

consequences in phenotype due to domestication

coat color and characteristics

Answer 4

pigmentation, thickness, wooly hair, shedding: sesonally/continous), no hair, skin folds

Question 5

consequences in phenotype due to domestication

biodiversity

Answer 5

high in dogs, pidgeons, cattle
less in ex horse, sheep

degree of variety (here within species)

Question 6

consequences in phenotype due to domestication

skeleton

Answer 6

body length, horned cattle
achondroplasia: problems in turning the cartilage into bone during development; esp. long bones—>short limbed animals is the result

Question 7

consequences in phenotype due to domestication

neural system

Answer 7

decr brain mass, perception abilities, fitness(measure of its ability, relative to others, to leave viable offspring)

Question 8

consequences in phenotype due to domestication

digestive system

Answer 8

length and effectiveness

Question 9

consequences in phenotype due to domestication

endocrine glands, kidneys, heart

Answer 9

great variability

Question 10

consequences in phenotype due to domestication

sexual activity

Answer 10

greatly influenced by human interferance

• seasonality can disappare
• earlier pubertyn and maturity
• incr sexual activity
• higher fertility
• sex organs more developed
• incr productivity