Week 7 Heritability

Question 1

What is heritability?

Answer 1

means how much of the variation in a phenotypic characteristic within a population can be attributed to genetic differences

Question 2

How is heritability coefficient interpreted?

Answer 2

• About causes of variation in traits
  
  • NOT what causes the traits themselves
• Applies to differences within a group
  • NOT differences between groups

Question 3

What is the heritability coefficient?

Answer 3

statistical estimate of the extent to which phenotypic variation in a particular group can be attributed to genetic factors

• It is a correlational term (positive value from 0 to 1)
• Often expressed as a percentage (from 0% to 100%)
• It applies to groups not individuals

Question 4

What is the difference between heredity and heritability?

Answer 4

• Heredity means the passage of characteristics from parent to offspring by way of genes
• Heritability means how much of the variation in the characteristic Within a population can be attributed to genetic differences

Question 5

What is concordance?

Answer 5

If a characteristic has a higher concordance and people who are more highly related to each otherAnd then this points to a possible genetic contributionParticularly if the people have lived in different environments

• Adoption study