Exam 7: Multifactorial Traits

"Total ridge count" is

Mutations and SNPs are similar in that

In humans,heritability of clubfoot is 0.8.This means that expression of this condition is

People with very light skin have _________

Traditional ways of evaluating multifactorial traits include

The DNA of dizygotic twins is

The proportion of shared genes between a grandparent and grandchild is ___ percent.

An assumption of twin studies is that

In a polygenic trait

The term "oligogenic disorder" refers to

DNA sequences that contribute to polygenic traits are called

A major distinction of genome-wide association studies,compared to the more traditional approaches of empiric risk,heritability,adoptee and twin studies,is that

To date,the most informative studies on how and to what degree heredity and the environment influence human traits have relied on data from

A cohort study looks at

The number of genes that affect skin,hair,and eye color is about

Empiric risk is based on ______,which is ___________.

A treatment to help a patient with a "wasting disease" such as AIDS or certain cancers might block that activity of

Genome-wide association studies have identified approximately __ regions that appear to harbor genes that control body weight.

The distinction between multifactorial and polygenic traits is that

For a multifactorial,polygenic trait,the characteristic shape of the mathematical plot of frequency for each phenotype class is