Exam 2: Biological and Environmental Foundations

Risks of fetoscopy include infection, rupture of the amniotic sac, premature labor and fetal death.

List four syndromes or diseases that are acquired through X-linked inheritance. Are males or females at greater risk for these disorders?

What are conceived when a woman releases more than one ovum and each is fertilized by a different sperm?

Which procedure requires studying tissue from the chorion to determine the presence of chromosomal abnormalities?

Which procedure may increase the likelihood of limb defects and miscarriage when conducted prior to 10 weeks gestational age?

Explain why males are more likely than females to be affected by X-linked disorders.

Noninvasive prenatal testing is without risk to the developing fetus.

Which trait is strongly canalized?

Gametes are produced through a process called ______.

When alleles of a pair of chromosomes for a trait are different, the person is considered ______.

A research finding about adopted children is that they ______.

List four disorders that are acquired through dominant-recessive inheritance. Are males or females at greater risk for these disorders? Why?

Selective breeding studies are used to compare people who live together and share varying degrees of relatedness.

Approximately 1 in 1,000 females are born with which syndrome?

Explain what range of reaction means in terms of genetics.

Sex cells are called ______.

The number of males affected by color blindness is about 1 in ______.

Danica, age 28, is very short in stature, has an abnormally small jaw, and her neck has extra folds of skin. Danica has never ovulated and she has underdeveloped breasts. Danica was born with which syndrome?

Maddox and Macy both carry alleles for brown hair. Their 4-year-old son, Drake, also has brown hair. Therefore, for the trait of brown hair, Drake is considered ______.

Kendon and Sharice just had a baby who was diagnosed with phenylketonuria. Describe this disorder. How can Kendon and Sharice ensure that their son will not develop permanent intellectual disability?