Exam 2: Biological and Environmental Foundations

Kaden is very thin, has severe acne, and demonstrates poor coordination. He also produces excessive levels of testosterone. What syndrome does this describe?

Which approach is used by a genetic counselor?

Identify four methods of prenatal diagnosis. Which two pose some risk to the developing fetus, especially if performed early in the pregnancy?

What is the most common genetic cause of intellectual developmental disability?

Which condition is dominant-recessive but non-sex chromosome linked?

List four groups of people who are candidates for genetic counseling.

Which term means the extent to which variation among people on a given characteristic is due to genetic differences?

Four-year-old Sam's parents were star athletes in high school and college. They are both coaches and manage a gym during the summer months. Sam has been exposed to sports since he was a baby. In addition to throwing and kicking balls with his parents, Sam recently started soccer and T-ball. He has also been enrolled in swimming lessons since he was 9 months old. Sam is already demonstrating strong athletic skills, despite being very young. This example demonstrates what type of gene-environment correlation?

The majority of sex chromosome abnormalities are fatal.

Twins originate from the same zygote are always ______.

Lu is from Korea and Pedro is from Ecuador. Lu and Pedro share what percentage of their genes?

Passive gene-environment correlations primarily influence development in late childhood and adolescence.

How many pairs of human chromosomes are matched and contain similar genes in almost identical positions and sequence?

Which term means the tendency of heredity to narrow the range of development to only one or a few outcomes?

Prader-Willi and Angelman syndromes are both caused by an abnormality in the 15th chromosome.

A particularly important finding associated with the study of epigenetics is that ______.

Distinguish between the two processes of cell reproduction.

Most mutations are fatal.

Which statement describes epigenetics?

Down syndrome occurs in approximately 1 out of every how many births?