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

The ____ is the cluster of cells in the centre of the zygote that will eventually develop into the baby.

The fact that the embryonic head develops before the body illustrates the ____ principle.

What effect is not associated with foetal alcohol spectrum disorder (FASD)?

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

At five weeks after conception, a developing human is most accurately called a(n)

A pregnant woman who consumes alcohol ____ has the greatest risk of giving birth to a baby with foetal alcohol spectrum disorder (FASD).

The thick, greasy substance that covers the foetus around five to six months after conception is called

Which period is not considered part of prenatal development?

The sample taken during an amniocentesis comes from

Mi Lei is pregnant and her body is currently experiencing the event that triggers hormonal changes that will prevent further menstruation. This event is called

The developing human organism that has just become completely embedded in the wall of the uterus is called the

Your phenotype includes physical, psychological, and behavioural features.

Bontle is 12 weeks pregnant and concerned that her foetus may have a genetic disorder. Describe two techniques that a doctor could use to determine whether Bontle's concerns are warranted. Also, discuss how foetal therapy could be used to deal with a disorder if one is identified.

Blessing, who was adopted at birth, is found to have personality characteristics more similar to his biological mom than to his adoptive mom. How should you interpret this data?

By the time Lindiwe arrived at the hospital to deliver her child, the child had entered the vaginal opening. This means that Lindiwe was in the ____ stage of labour.

A teratogen is any agent that

What was the most critical lesson about teratogens learned from studies on the use of the drug diethylstilbestrol (DES) by pregnant women?

The first ____ pairs of chromosomes are called autosomes and the ____ pair is called sex chromosomes.

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.

A developing human that is traveling from a fallopian tube to the uterus would most accurately be described as a(n)