Exam 21: Human Development and Genetics

Genetics problem: Mom is homozygous for type A blood and Dad is homozygous for type B blood. The chance that their child will have type A blood is:

In the early embryo, the heart and skeletal muscles are derived from the:

Genetics problem: Mom is type O and Dad is heterozygous for type A. The percent chance that a child of theirs will have type O blood is ____________________.

The embryonic membrane that forms the fetal portion of the placenta is the:

The sex chromosomes in men are called:

Genetics problem: Mom is type O and Dad is heterozygous for type A. The percent chance that a child of theirs will have type A blood is ____________________.

Sex-linked traits are considered ____________________ because a woman must have ____________________ gene(s) for them to express such traits.

Homologous chromosomes are a pair of chromosomes that may also be called:

The stage of labor during which the infant is delivered is the:

During gestation, the last 32 weeks are considered the ____________________ growth period.

The early embryonic stage that consists of a hollow sphere of cells with an inner cell mass is the:

In the placenta, nutrients are taken into fetal vessels by the process of ____________________.

When a zygote undergoes cleavage, the process involved is:

The placental hormones that inhibit ovulation during pregnancy are:

For the ABO blood types in people, the O allele is ____________________ and the A and B alleles are ____________________.

Genetics problem: Mom is heterozygous for type A blood and Dad is homozygous for type B blood. The chance that their child will have type B blood is:

The two members of a homologous pair of chromosomes have genes for the ____________________.

The function of the placental hormone hCG is to maintain the ____________________ during early pregnancy.

During the ____________________ stage of labor, the placenta is delivered.

A homologous pair of chromosomes contains genes for: