Exam 2: Biological and Environmental Foundations

Characteristics that vary on a continuum among people,such as height,weight,or intelligence,are most likely determined by __________ inheritance.

Although schooling is vital for all children,the_______________ has an especially powerful impact on the welfare of families,societies,and future generations.

To infer the role of heredity in complex human characteristics,researchers use special methods,the most common being

The most common sex chromosome disorders involve

The concept of range of reaction explains that children who are exposed to the same environmental conditions

Describe the concept of genetic-environmental correlation,including passive,evocative,and active types.Define niche-picking.

Define public policy,and discuss how Americans fare on key measures of childhood health and well-being and policies for the elderly.

In the United States,the poverty rate for single mothers with preschool children and elderly women on their own is nearly _____ percent.

To detect problems before birth,doctors use

A zygote that separates into two clusters of cells instead of just one produces

Research on the effects of neighborhoods suggests that

Neighborhoods have a(n)__________ impact on economically disadvantaged than well-to-do young people.

One reason that the American people have been reluctant to accept the idea of publicly supported child care is that

__________ is/are a major cause of the dramatic rise in multiple births in recent decades.

Explain how both affluence and poverty can negatively affect development.

If the alleles from both parents _________,the child is ___________.

Most chromosomal defects result from

_________________ is commonly used to overcome male reproductive difficulties.

_______ hair is dominant,while ______ hair is recessive.

A gamete