Question 1

Which of the following is true about the effects of cocaine use by pregnant women?

Accepted Answer

A)   Cocaine exposure during prenatal development is associated with increased birth weight.
B)   Prenatal cocaine exposure has been linked to higher arousal.
C)   Cocaine exposure during prenatal development is associated with reduced length and head circumference.
D)   Children born to cocaine users exhibit higher quality of reflexes at 1 month of age.E) B) and D)
F) B) and C)

Question 2

Which of the following is an example of chromosomal abnormality that occurs when whole chromosomes do not separate properly during meiosis?

Accepted Answer

A)   Down syndrome
B)   Hemophilia
C)   Huntington's disease
D)   Sickle-cell anemiaE) C) and D)
F) A) and D)

Question 3

Define and give an example of a teratogen.

Accepted Answer

A teratogen is any agent that can potent...

Question 4

The fetus that Calista is carrying has reached the age of viability, meaning that it has a chance of surviving outside of the womb. Therefore, it can be inferred that Calista is _____ weeks pregnant.

Accepted Answer

A)   4 to 8
B)   16 to 18
C)   24 to 25
D)   10 to 12E) C) and D)
F) B) and C)

Question 5

Summer and Clark are considering undergoing fertility treatments. What is one of the main risk factors that the couple must be aware of while weighing their options?

Accepted Answer

A)   High birth weight in babies conceived through such treatments.
B)   An increase in the possibility of multiple births when such treatments are used.
C)   Negative psychological impact on children conceived through such treatments.
D)   Significant differences in developmental outcomes for children conceived through such treatments.E) A) and D)
F) A) and C)

Question 6

A prenatal medical procedure in which a sample of amniotic fluid is withdrawn by syringe and tested for chromosomal or metabolic disorders.

Accepted Answer

The answer of A prenatal medical procedure in which a...

Question 7

Carrie's parents both have brown hair. However, Carrie gets genes for blond hair from both parents, and as result she has blonde hair. This indicates that the gene for blonde hair is a(n) :

Accepted Answer

A)   recessive gene.
B)   dominant gene.
C)   susceptibility gene.
D)   longevity gene.E) None of the above
F) B) and C)

Question 8

Lindsay's body does not produce enough insulin, causing an abnormal metabolism of sugar. She is receiving insulin treatment. Lindsay has:

Accepted Answer

A)   spina bifida.
B)   hemophilia.
C)   PKU.
D)   diabetes.E) A) and B)
F) C) and D)

Question 9

Which of the following is a feature of the embryonic period of prenatal development?

Accepted Answer

A)   The creation of the fertilized egg
B)   Formation of the blastocyst
C)   The attachment of the zygote to the uterine wall
D)   Formation of support systems for cellsE) B) and C)
F) None of the above

Question 10

Charlie is a cooperative, attentive child and is a favorite at home and school and receives positive, instructive responses from adults. This is indicative of a(n) :

Accepted Answer

A)   passive genotype-environment correlation.
B)   evocative genotype-environment correlation.
C)   influential genotype-environment correlation.
D)   active (niche-picking)  genotype-environment correlation.E) A) and B)
F) C) and D)

Question 11

_____ is the way an individual's genotype is expressed in observable and measurable characteristics.

Accepted Answer

A)   RNA
B)   DNA
C)   Phenotype
D)   StereotypeE) None of the above
F) B) and C)

Question 12

In some cases, one gene of a pair always exerts its effects, overriding the potential influence of the other gene. This is the _____ principle.

Accepted Answer

A)   sex-linked genes
B)   dominant-recessive genes
C)   genetic imprinting
D)   polygenic inheritanceE) C) and D)
F) A) and B)

Question 13

Timothy is a quiet 6-year-old who is usually withdrawn in class. As a result, he does not receive much attention from his peers and mostly plays by himself. According to Sandra Scarr, this is an example of a(n)  _____.

Accepted Answer

A)   passive genotype-environment correlation
B)   active (niche-picking)  genotype-environment correlation
C)   gene x environment interaction
D)   evocative genotype-environment correlationE) A) and D)
F) B) and D)

Question 14

David and Kelly are seeking help for infertility. Under their physician's guidance, they decide to undergo a procedure in which Kelly's eggs are combined in a laboratory dish with her husband's sperms. What is this procedure called?

Accepted Answer

A)   Gamete transfer
B)   Intracytoplasmic sperm injection
C)   Zygote intrafallopian transfer
D)   In vitro fertilizationE) All of the above
F) C) and D)

Question 15

Which of the following statements is TRUE regarding the impact of teratogens?

Accepted Answer

A)   Very few fetuses are exposed to teratogens, so it is easy to determine which teratogen causes which defect.
B)   Fetuses are safe from the effects of teratogens during the first trimester.
C)   Teratogens cause anatomical defects only after organogenesis is complete.
D)   Exposure to teratogens does more damage when it occurs at some points in development than at others.E) None of the above
F) B) and C)

Question 16

Marly describes her friend, Gina, as having blonde hair, green eyes, and fair skin with freckles. Marly has described Gina's _____.

Accepted Answer

A)   genotype
B)   genetic imprint
C)   phenotype
D)   X-linked inheritanceE) A) and B)
F) A) and C)

Question 17

Which of the following is NOT a possible explanation for infertility in a woman?

Accepted Answer

A)   Abnormal ova
B)   Blocked fallopian tubes
C)   Eggs lack motility
D)   Disease of the uterusE) A) and B)
F) B) and C)

Question 18

The Apgar Scale is a method used to assess the health of newborns. A score of 3 would indicate:

Accepted Answer

A)   that the newborn's condition is good.
B)   that there may be some developmental difficulties.
C)   an emergency because the baby's survival is in doubt.
D)   that the evaluator has not made a proper reading.E) A) and B)
F) B) and C)

Question 19

Which of the following is the U.S. Surgeon General's recommendation regarding alcohol intake during pregnancy?

Accepted Answer

A)   It is wise to consume alcohol in moderation at the time of conception.
B)   One or two servings of beer or wine a few days a week can have positive effects on the fetus.
C)   No alcohol should be consumed during pregnancy.
D)   One or two servings of hard liquor a few days a week can have positive effects on the fetus.E) B) and C)
F) A) and C)

Question 20

_____ is a stage in reproduction whereby an egg and a sperm fuse to create a single cell.

Accepted Answer

A)   Fertilization
B)   Osmosis
C)   Meiosis
D)   MitosisE) None of the above
F) B) and C)

Exam 2: Biological Beginnings

A prenatal medical procedure in which a sample of amniotic fluid is withdrawn by syringe and tested for chromosomal or metabolic disorders.

Correct AnswerverifiedShow Answer

_____ is a stage in reproduction whereby an egg and a sperm fuse to create a single cell.

Correct AnswerverifiedShow Answer

Which of the following is a feature of the embryonic period of prenatal development?

Correct AnswerverifiedShow Answer

Which of the following statements is TRUE regarding the impact of teratogens?

Correct AnswerverifiedShow Answer

Summer and Clark are considering undergoing fertility treatments. What is one of the main risk factors that the couple must be aware of while weighing their options?

Correct AnswerverifiedShow Answer

Which of the following is the U.S. Surgeon General's recommendation regarding alcohol intake during pregnancy?

Correct AnswerverifiedShow Answer

David and Kelly are seeking help for infertility. Under their physician's guidance, they decide to undergo a procedure in which Kelly's eggs are combined in a laboratory dish with her husband's sperms. What is this procedure called?

Correct AnswerverifiedShow Answer

The Apgar Scale is a method used to assess the health of newborns. A score of 3 would indicate:

Correct AnswerverifiedShow Answer

Which of the following is NOT a possible explanation for infertility in a woman?

Correct AnswerverifiedShow Answer

Which of the following is true about the effects of cocaine use by pregnant women?

Correct AnswerverifiedShow Answer

Carrie's parents both have brown hair. However, Carrie gets genes for blond hair from both parents, and as result she has blonde hair. This indicates that the gene for blonde hair is a(n) :

Correct AnswerverifiedShow Answer

Timothy is a quiet 6-year-old who is usually withdrawn in class. As a result, he does not receive much attention from his peers and mostly plays by himself. According to Sandra Scarr, this is an example of a(n) _____.

Correct AnswerverifiedShow Answer

The fetus that Calista is carrying has reached the age of viability, meaning that it has a chance of surviving outside of the womb. Therefore, it can be inferred that Calista is _____ weeks pregnant.

Correct AnswerverifiedShow Answer

Define and give an example of a teratogen.

Correct AnswerverifiedA teratogen is any agent that can potent...View AnswerShow Answer

_____ is the way an individual's genotype is expressed in observable and measurable characteristics.

Correct AnswerverifiedShow Answer

Charlie is a cooperative, attentive child and is a favorite at home and school and receives positive, instructive responses from adults. This is indicative of a(n) :

Correct AnswerverifiedShow Answer

Marly describes her friend, Gina, as having blonde hair, green eyes, and fair skin with freckles. Marly has described Gina's _____.

Correct AnswerverifiedShow Answer

Lindsay's body does not produce enough insulin, causing an abnormal metabolism of sugar. She is receiving insulin treatment. Lindsay has:

Correct AnswerverifiedShow Answer

In some cases, one gene of a pair always exerts its effects, overriding the potential influence of the other gene. This is the _____ principle.

Correct AnswerverifiedShow Answer

Which of the following is an example of chromosomal abnormality that occurs when whole chromosomes do not separate properly during meiosis?

Correct AnswerverifiedShow Answer

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A teratogen is any agent that can potent...
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