population and quantitative genetics - lecture 15

Question 1

Discontinous

Answer 1

Traits can be categorized into a few classes

Question 2

Continous

Answer 2

characteristics vary along a scale of measuremnet

Question 3

Quantitative traits

Answer 3

generally complex - many genetic and environmental influcnces

Question 4

Qualitative traits

Answer 4

can be complex if categories reflect continously variable underly traits

Question 5

Meristic (countable) traits

Answer 5

determinded by multplie genetic and environmnetal factors , can be measured in whole numbers

Question 6

Thershold traits

Answer 6

meaured by presence or absence, susceptibility to disease

Question 7

What are comlpex traits?

Answer 7

• phenotype reflects the cumulative effects of many genes/ loci
• whilealso being influenced by environmental factors

Question 8

Is disease risk qualitative or a quantitative trait?

Answer 8

quantitative

Question 9

Is expression of a disease qualitative or quantitative?

Answer 9

qualitative