Question 1

Adoptions studies of hostile and antisocial adolescents have found that, compared to controls, they are more likely to have a similarly hostile and antisocial:

Accepted Answer

A)  biological parent. 
B)  adoptive parent. 
C)  biological sibling. 
D)  Both a and b are correct.

Question 2

In Scarr's dynamic model of gene-environment interactions, the finding that biologically-unrelated siblings raised in the same home grow increasingly dissimilar with age can be explained by the concept of

Accepted Answer

A)  reaction range. 
B)  passive gene-environment relationships. 
C)  niche-picking. 
D)  limit-setting.

Question 3

Body cells duplicate by the chromosomes

Accepted Answer

A)  doubling in number, then dividing into two identical child cells. 
B)  doubling in number, then dividing into four identical child cells. 
C)  doubling in number, then dividing into two non-identical child cells. 
D)  quadrupling in number, then dividing into four non-identical child cells.

Question 4

Amy has blue eyes. Amy's blue eyes are an example of how her

Accepted Answer

A)  genotype is expressed as a phenotype 
B)  phenotype is expressed as a genotype 
C)  inheritance is expressed as an allele 
D)  inheritance is expressed as mitosis

Question 5

Genetic disorders may be caused by

Accepted Answer

A)  errors during meiosis. 
B)  heredity. 
C)  environmental hazards. 
D)  All of the responses are accurate.

Question 6

Individuals with Down syndrome

Accepted Answer

A)  have an extra chromosome, usually chromosome 21. 
B)  are missing part of a chromosome, usually chromosome 11. 
C)  have three times as many chromosomes as normal. 
D)  usually pass the disorder on to any offspring they might have.

Question 7

Use Gottesman's Limit Setting Model to explain how monozygotic twins reared separately show different phenotypes.

Accepted Answer

The answer of Use Gottesman's Limit Setting Model to explain...

Question 8

The observable expression of one's genetic makeup is known as the

Accepted Answer

A)  phenotype. 
B)  genotype. 
C)  principle of dominance. 
D)  trait.

Question 9

Use Scarr's Niche-Picking Model to explain how two siblings growing up in the same household are so different.

Accepted Answer

The answer of Use Scarr's Niche-Picking Model to explain how...

Question 10

The process in which cells duplicate, then divide two times, producing four cells, each with 23 single chromosomes is known as

Accepted Answer

A)  replication. 
B)  mitosis. 
C)  meiosis. 
D)  doubling.

Question 11

Sickle-cell anemia is characterized by

Accepted Answer

A)  red blood cells that are abnormally shaped. 
B)  accumulation of phenylalanine in the blood stream. 
C)  accumulation of fatty deposits in the brain. 
D)  deterioration of the nervous system.

Question 12

Mendel's insights into the mechanisms of genetics included all of the following except

Accepted Answer

A)  incomplete dominance. 
B)  the principle of segregation. 
C)  the principle of independent assortment. 
D)  that traits are associated with the presence of two elements, one inherited from each parent.

Question 13

Henry Goddard's investigation of approximately 1,000 descendants of Martin Kallikak (a pseudonym), a soldier of the American Revolution, illustrates which of the following research methods?

Accepted Answer

A)  Family study 
B)  Adoption study 
C)  Twin study 
D)  Chromosomal analysis

Question 14

Twin studies support the influence of genes on

Accepted Answer

A)  IQ. 
B)  temperament. 
C)  developmental pacing. 
D)  All of the responses are accurate.

Exam 3: Genetics: The Biological Context of Development