Question 1

Salina is becoming emotionally attached to her unborn fetus.Her breasts are secreting colostrum.Salina is most likely in which trimester?

Accepted Answer

A) Third 
B) Fourth 
C) First 
D) Second

Question 2

Which of the following is an autosomal dominant disorder?

Accepted Answer

A) Huntington's disease 
B) Phenylketonuria 
C) Sickle-cell disease 
D) Tay-Sachs disease

Question 3

Pregnant women should eat foods high in folic acid,such as beans or spinach,during pregnancy.What is the purpose of this dietary recommendation?

Accepted Answer

A) To help moderate the effects of teratogens to which the fetus might be exposed 
B) To reduce the effects of stress on the fetus 
C) To ensure sufficient weight gain for a healthy baby 
D) To reduce the risk of neural tube defects such as spina bifida

Question 4

Blake carries two dominant genes for brown eyes.Blake is therefore ________ in his eye color chromosomes.

Accepted Answer

The answer of Blake carries two dominant genes for brown...

Question 5

Not long after Gloria found out she was pregnant,she began having pain.When she went to her doctor,she was told that the zygote had implanted in her fallopian tube rather than in her uterus.What type of pregnancy is this?

Accepted Answer

A) A fallopian pregnancy 
B) A zygotic pregnancy 
C) An ectopic pregnancy 
D) An interstitial pregnancy

Question 6

Which of the following correctly lists the stages of prenatal development in order of progression?

Accepted Answer

A) Fetal,embryonic,germinal 
B) Zygotic,germinal,embryonic 
C) Germinal,embryonic,fetal 
D) Embryonic,fetal,germinal

Question 7

Which of the following is associated with maternal malnutrition?

Accepted Answer

A) A decreased risk of delivering a low birth weight infant 
B) The delayed expression of adaptive reflexes 
C) The development of mental illnesses in adulthood 
D) Brain abnormalities in which both the weight and volume of the brain are enlarged

Question 8

Most sex-linked disorders are caused by which of the following?

Accepted Answer

A) Maternal alcoholism 
B) Fetal alcohol spectrum disorder 
C) Recessive genes 
D) Dominant genes

Question 9

Define the concept of genomic imprinting.

Accepted Answer

The answer of Define the concept of genomic imprinting....

Question 10

Which of the following is the best example of the expressivity of genes?

Accepted Answer

A) Michelle and Michael are twins and they exhibit similar behaviors. 
B) Manuel's tendency to be emotional is determined by recessive genes he received from both his parents. 
C) Clara's blood type is AB because her mother was heterozygous for type B and her father was heterozygous for type A. 
D) Linda received a dominant gene for freckles from her father,but Linda's freckles are smaller,lighter,and more widely scattered than those of her father.

Question 11

How does prenatal brain development influence sex differences in traits such as aggression,motor patterns,and hemispheric dominance?

Accepted Answer

The answer of How does prenatal brain development influence sex...

Question 12

An infant who is born with low birth weight,flattened nose,hearing loss,and heart defects is likely suffering from ________.

Accepted Answer

The answer of An infant who is born with low...

Question 13

All neonates below ________ are classified as having low birth weights.

Accepted Answer

The answer of All neonates below ________ are classified as...

Question 14

Which of the following is caused by a gene on the X chromosome?

Accepted Answer

A) Tay-Sachs disease 
B) Color blindness 
C) PKU 
D) Sickle-cell disease

Question 15

Where does the fertilization of the ovum take place in a normal pregnancy?

Accepted Answer

A) Ovary 
B) Uterus 
C) Fallopian tubes 
D) Vagina

Question 16

Assume that you are a young woman attending college.You plan to wait until you finish your graduate degree and are well-established in a career before having children.What research findings should you consider in this decision?

Accepted Answer

The answer of Assume that you are a young woman...

Question 17

Which of the following is associated with the second trimester of pregnancy?

Accepted Answer

A) Formation of a mucus "plug" to seal the entrance to the uterus 
B) The zygote implants on the uterine wall 
C) Movements of the fetus 
D) Nausea

Question 18

When researchers have examined the relationship between maternal emotions and prenatal development,the most consistent finding has been that

Accepted Answer

A) stressful psychological states,such as anxiety or depression,lead to spontaneous abortion or fetal death. 
B) fetuses of severely distressed mothers tend to grow more slowly. 
C) there is no link between maternal emotions and the development of the infant. 
D) infants whose mothers were anxious or depressed are more likely to be anxious or depressed as adults.

Question 19

Color blindness is considered a sex-linked disorder because the gene is only carried on the ________ chromosome.

Accepted Answer

The answer of Color blindness is considered a sex-linked disorder...

Question 20

Which of the following is a characteristic of a child born with fetal alcohol spectrum disorder?

Accepted Answer

A) The child may be born larger than other infants of comparable maturity and may continue to be larger than its age peers throughout life. 
B) The child may have a very high physical activity level or may even be hyperactive. 
C) The child may be mentally retarded. 
D) The child may have a large,broad nose.

Exam 3: Prenatal Development and Birth