Question 1

Labor that is started,speeded up,or strengthened with a drug is referred to as "_____ labor."

Accepted Answer

The answer of Labor that is started,speeded up,or strengthened with...

Question 2

Each molecule of deoxyribonucleic acid (DNA)is stored on:

Accepted Answer

A)  a chromosome. 
B)  RNA. 
C)  a gene. 
D)  a zygote.

Question 3

Jennifer and Jerry are dizygotic twins.They are the result of:

Accepted Answer

A)  one ovum fertilized by one sperm that split into two zygotes. 
B)  two separate ova that were fertilized by two different sperm. 
C)  one ovum that was fertilized by two sperm. 
D)  two ova that were fertilized by one sperm.

Question 4

James and Jacob are identical twins.They are the result of:

Accepted Answer

A)  one ovum fertilized by one sperm that split into two zygotes. 
B)  two separate ova that were fertilized by two different sperm. 
C)  one ovum that was fertilized by two sperm. 
D)  two ova that were fertilized by one sperm.

Question 5

Theresa went into labor at her home.Joan arrived soon after and began to time her contractions and give gentle massages.She assisted Theresa and her partner when it was time to leave for the hospital and accompanied them through the birth process.Joan was Theresa's:

Accepted Answer

A)  postpartum nurse. 
B)  doctor. 
C)  couvade. 
D)  doula.

Question 6

A(n)_____ uses sound waves to generate an image of a fetus in utero.

Accepted Answer

The answer of A(n)_____ uses sound waves to generate an...

Question 7

The third period of gestation is the _____ period.

Accepted Answer

A)  zygotic 
B)  embryonic 
C)  germinal 
D)  fetal

Question 8

Newborn Kendra received an Apgar score of 4.This score indicates that Kendra is:

Accepted Answer

A)  healthy and responsive. 
B)  in need of emergency care. 
C)  slightly lethargic but in good condition. 
D)  hungry,cold,and irritable.

Question 9

Which of the following is an example of a single-gene disorder that is dominant?

Accepted Answer

A)  Down syndrome 
B)  nearsightedness 
C)  fragile X syndrome 
D)  Huntington's disease

Question 10

Every sex difference is influenced by _____.

Accepted Answer

The answer of Every sex difference is influenced by _____....

Question 11

_____ refers to all the microbes that live within every part of the body.

Accepted Answer

The answer of _____ refers to all the microbes that...

Question 12

Michelle and Thomas are having a baby and are hoping for a boy.The sex of the developing baby depends on the chromosomal contribution of _____.

Accepted Answer

The answer of Michelle and Thomas are having a baby...

Question 13

_____ refers to a trait that is affected by many variables,both genetic and environmental,that enhance,halt,shape,or alter the expression of genes,resulting in a phenotype that may differ markedly from the genotype.

Accepted Answer

A)  Polygenic 
B)  Nonadditive 
C)  Multifactorial 
D)  Monozygotic

Question 14

Baby Danny weighed 2 pounds,8 ounces at birth.Danny would be classified as ____ birthweight.

Accepted Answer

A)  low 
B)  very low 
C)  extremely low 
D)  average

Question 15

The effects of behavioral teratogens may last a lifetime.

Accepted Answer

A) True 
 B)False

Question 16

Low folic acid during pregnancy can result in:

Accepted Answer

A)  heart defects. 
B)  lung defects. 
C)  limb deformities. 
D)  neural-tube defects.

Question 17

Terri and Tina are the result of one ovum fertilized by one sperm that split into two zygotes.Terri and Tina are _____.

Accepted Answer

The answer of Terri and Tina are the result of...

Question 18

With respect to test results,a false positive is the result of a laboratory test that reports something as:

Accepted Answer

A)  true when in fact it is not true. 
B)  false when in fact it is not false. 
C)  true when in fact it is true. 
D)  false when in fact it is false.

Question 19

If the 23rd pair of chromosomes is _____,the individual will be female.

Accepted Answer

The answer of If the 23rd pair of chromosomes is...

Question 20

About a week after conception,the outer layer of the multiplying cells forms a protective circle,or shell,that will become the:

Accepted Answer

A)  placenta. 
B)  umbilical cord. 
C)  vernix. 
D)  infant.

Exam 2: The Beginning: From Conception to Birth