Exam 2: Biological Foundations: Heredity, Prenatal Development, and Birth 

The process in which defective cells in the body are replaced with cells that have had the genetic defect "repaired" is called

A heritability coefficient of ____ means about 50 percent of the difference between people on a specific characteristic is the result of heredity.

A sperm cell contains a total of 22

The point at which a zygote burrows into the uterine wall is referred to as ​

How is a physician most likely to guard against fetal hypoxia?

If a physician informed you that your speech disorder was the result of problems on chromosomes 4, 7, and 15, you would rightly conclude that the disorder is always classifiable as ​

If Agnieszka found out that she was conceived through in vitro fertilization, she would know for certain that

Both AIDS and genital herpes

Marsha's doctor informs her that her child is just entering the longest period of prenatal development. About how long has Marsha been carrying her unborn child?

Joseph is homozygous for normal blood cells. This means that he ​

The following quotes summarize key concepts in biology. For each one, describe a real-life example illustrating each of these principles: "The behavioral consequences of genetic instructions depend on the environment in which those instructions are implemented." "Genes can influence the kind of environment to which a person is exposed." "Environmental influences typically make children within a family different."

When a child deliberately seeks an environment that fits his or her heredity, the child is engaging in _______________.

Damage from teratogens are sometimes not evident until later in life. ​

Any substance that causes abnormal prenatal development is classified as a(n)_______________. ​

Because it involves prolonged physical effort, the process of childbirth is often referred to as involving stages of

The correct order of prenatal development is zygote to embryo to fetus.

When the chromosomes in a pair are the same, they are said to be heterozygous. ​

Which event occurs following in vitro fertilization?

"Trisomy  21" (three 21st chromosomes)best describes ​

Length of gestation (i.e., number of weeks in utero)and weight at birth are both related to birth risk. Demonstrate your awareness of key related concepts by discussing the concepts of prematurity, low birth weight, and extremely low birth weight.