Developing Through The Life Span

Question 0

The germinal period

Answer 0

Conception to two weeks

Question 1

The moment at which a female becomes pregnant

Answer 1

Conception

Question 2

Ovum

Answer 2

The female sex cell

Question 3

Fertilization

Answer 3

The Union of the ovum and the sperm

Question 4

Zygote

Answer 4

The fertilized egg

Question 5

How long is the period of rapid cell division for a zygote?

Answer 5

Two weeks

Question 6

Differentiation

Answer 6

Cell specialization in structure and function

Question 7

Genetics

Answer 7

The science of heredity

Question 8

DNA

Answer 8

Complex molecule containing the genetic info that makes up the chromosome

Question 9

Chromosomes

Answer 9

Threadlike structures made up of DNA molecules that contain genes

Question 10

Dominant allele

Answer 10

• An allele that codes for a functional protein

- Actively controls the expression of a trait

Question 11

Recessive allele

Answer 11

• An allele that codes for a nonfunctional protein

- Only influence the expression of a trait when paired with an equally powerful allele

Question 12

Polygenic inheritance

Answer 12

The idea that almost all traits are controlled by more than one pair of genes

Question 13

Combined expression

Answer 13

When two genes are so equally dominant or recessive that organisms exhibits a “blended” trait

Question 14

Embryonic period

Answer 14

Weeks 3 -8

Question 15

Embryo

Answer 15

• Developing human organism from 2 weeks to 2 months
• The organs begin to form and function
• Heart begins to beat

Question 16

Placenta

Answer 16

• Transfers nutrients and oxygen from the mother to the embryo
• Forms as the zygote’s outer cells attach to the uterine wall

Question 17

Teratogen

Answer 17

• Any factored that can cause a birth defect

- Chemicas and viruses are prominent teratogens

Question 18

Fetal alcohol syndrome

Answer 18

Physical and cognitive abnormalities in children caused by a pregnant woman’s consumption of alcohol

Question 19

The fetal period

Answer 19

3 months to delivery

Question 20

Fetus

Answer 20

He developing human organism from nine weeks after conception to birth

Question 21

Automatic (universal) responses (present at birth)

Answer 21

Coordinate reflexes

Social responsiveness

Question 22

Coordinate reflexes

Answer 22

• Turning toward touch
• withdrawing limbs from pain
• Rooting, sucking, and swallowing
• breathing

Question 23

Social responsiveness

Answer 23

• Turning toward the sound of a human voice

- Gazing longer at a figure that resembles a human facial configuration that at one that doesn’t