Child Development Test
Ch 5 Prenatal Development
1. Characteristics that a child receives from both parents is called:
a. Alleles
b. Heredity
c. Sex Cells
d. Mitosis
2. The order of the periods of development are:
a. Zygote, fetus, embryo
b. Fetus, zygote, embryo
c. Embryo, zygote, fetus
d. Zygote, embryo, fetus
3. Which is NOT one of the four factors that contribute to multiple births?
a. History in the family
b. More hormones in foods
c. More than 1 egg released
d. Fertility Drugs
4. Another name for fraternal twins is:
a. Monozygote
b. Dizygote
c. Trizygote
d. Heptozygote
5. Quickening means:
a. Being able to breathe
b. Feeling the baby’s movements like kicks
c. Getting a burst of energy in the morning to start off the day
d. Morning sickness
6. Lightening means:
a. Feeling the baby moving around
b. Getting a burst of energy sporadically throughout the day
c. Morning sickness
d. The fetus drops into pelvis allowing mom to take deeper breaths
7. This is a long tube that brings the baby nourishment and takes away waste.
a. Placenta
b. Umbilical Cord
c. Amniotic Sac
d. Amniotic fluid
8. This is the union of an ovum and a sperm resulting in the beginning of pregnancy.
a. Uterus
b. Fertility
c. Fallopian tube
d. Conception
9. Every human baby receives how many chromosomes?
a. 21 from mom 21 from dad
b. 24 from mom 27 from dad
c. 23 from mom 23 from dad
d. 43 from mom 43 from dad
10. This type of twin always develops two separate placentas, each with its own chorion and
amnion.
a. Fraternal Twins
b. Identical Twins
c. Siamese Twins
d. Conjoined Twins
Directions: Match the statement to the period of development:
A. period of the zygote
B. period of the fetus
C. period of the Embryo
1. The fertilized egg is about the size of a pinhead.
2. A sac of amniotic fluid forms.
3. The baby assumes the fetal position
4. The baby begins to move; “quickening” occurs.
5. The fertilized egg passes through the Fallopian tube
8. Conception takes place
9. The heartbeat can be heard through a stethoscope
10. The face and limbs begin to take shape
11. The fertilized egg attaches itself to the lining of the uterus
12. The baby is upside down, with its head nestled in the mother’s pelvis.
13. The unborn baby begins to suck its thumb, cough, sneeze, and yawn.
14. The fertilized egg begins to grow by the process of cell division.
15. Nourishment begins to pass from the placenta through the umbilical cord.
True/False
16. A baby’s heart starts to beat just 18 days after conception.
17. The embryo is attached to the mother through them umbilical cord.
18. Doctors and scientists don’t know the importance of Lanugo and Vernix in the role of the
developing baby.
19. In the ninth month, disease fighting antibodies are taken from the mother’s blood and
transferred to the baby.
20. Just 10-14 days after conception the fertilized egg implants itself in the mother’s uterus.
21. Identical twins are more common than fraternal twins.
22. Identical twins occur when one fertilized egg cell splits.
23. Conjoined twins are twins that do not fully separate from each other due to the incomplete
division of the fertilized ovum.
24. It is not possible to have twins with different fathers.
25. The father determines the sex of the baby.
26. The McCaughey family that we watched on Oprah is famous because they have sextuplets.
27. TTTS is a deadly condition that affects only the fetuses of identical twins.
28. Conjoined twins will not share tissue, organs or limbs.
29. Depending on when the split occurs will determine if the twins share a placenta.
You may write on this Page:
List 2 examples of inherited characteristics: ________________________________________
Both parents are carriers of the recessive sickle cell allele (r).
 Draw the punnett square.
 What are the chances the baby will have sickle cell?
 What are the chances the baby will be a carrier?
 What are the chances the baby will no have or carry the sickle cell allele?
What is the difference between identical and fraternal twins? What is the difference between how
they were created?
List five effects of pregnancy on the mother. Include the trimester the effect occurs for at least
three of the five.
1.
2.
3.
4.
5.
Explain one way triplets can be conceived. (Hint: Not fertility drugs but how the babies are
made with egg and sperm)
In your opinion what is the coolest thing you learned from this chapter?
(Must be at least one complete sentence to get credit)