Genetic Building Blocks
Patterns of Inheritance
Prenatal Development
Prenatal Influences
Birth and Newborns
100

Genetic Building Blocks

DNA (Heredity)

100

This trait requires only one allele.

Dominant trait (Genetic Variation)

100

This is the first prenatal period.

Germinal period (Prenatal Development)

100

This is a harmful prenatal substance.

Teratogen (Prenatal Influences)

100

This stage includes cervical dilation.

First stage (Childbirth)

200

These structures contain our genes.

Chromosomes (Heredity)

200

This trait requires two matching alleles.

Recessive trait (Genetic Variation)

200

This structure attaches to the uterus.

Blastocyst (Prenatal Development)

200

This vitamin supports neural-tube development.

Folic acid (Folic acid)

200

The baby is delivered during this stage.

Second stage (Childbirth)

300

These are different forms of a gene.

Alleles all-leel-al (Heredity)

300

This means having identical alleles.

Homozygous (Genetic Variation)

300

This prenatal period covers weeks 3–8.

Embryonic period (Prenatal Development)

300

Prenatal alcohol exposure can cause this.

Fetal Alchohol Spectrum Disorders FASD (Prenatal Influences)

300

The placenta is delivered during this stage.

Third stage (Childbirth)

400

This is a person’s genetic makeup.

Genotype (Heredity)

400

This means having different alleles.

Heterozygous (Genetic Variation)

400

This prenatal period begins at week 9.

Fetal period (Prenatal Development)

400

This substance in cigarettes is addictive.

Nicotine (Prenatal Influences)

400

This test evaluates newborn health.

Apgar assessment (Childbirth)

500

This means observable characteristics.

Phenotype (Heredity)

500

This diagram predicts inherited traits.

Punnett square (Genetic Variation)

500

This organ exchanges nutrients and waste.

Placenta (Prenatal Development)

500

This infection can harm prenatal development.

Rubella (Prenatal Influences)

500

Birth before 37 weeks is called this.

Preterm birth (Childbirth)