Exam 2: Heredity and Prenatal Development

_____ is used to detect neural tube defects such as spina bifida and certain chromosomal abnormalities.

_________are problems that stem from the interaction of heredity and environmental factors. ​

According to a study in the year 2013 by Fellman, the chances of twins:

Deoxyribonucleic acid (DNA) takes the form of a:

According to a study in the year 2013 by Fellman, which of the following statements is true of fertility drugs?

_________is a genetic disorder in which blood does not clot properly. ​

A blastocyst gains mass only when it receives nourishment from outside.

Sebaceous glands cause a developing organism to grow arms or wings, skin or scales.

The typical sex chromosome pattern for females is _____.

After meiosis, each new cell nucleus contains _____ chromosomes.

Color blindness is a sex-linked abnormality.

Humans begin life as a single cell that divides repeatedly. This cell is known as a(n):

Daisy was always unusually short for her age. She was unable to conceive a child after marriage, and upon visiting a doctor, she was prescribed estrogen replacement therapy. Daisy is most likely suffering from:

When both of the alleles for a trait, such as hair color, are the same, the person is said to be _____ for that trait.

The fetus begins to turn and respond to external stimulation at about the second or third week.

Genotypes reflect both genetic and environmental influences.

_____ is a sexually transmitted infection that, in advanced stages, can attack major organ systems.

Discuss some of the causes of infertility in men.

Which of the following statements is true of a sperm cell?

Twenty-year-old Jack is extremely tall and has very thick facial hair. Most of his male secondary sex characteristics are also more pronounced than men of his age. In this scenario, Jack is most likely: