Fcs312

Question 1 (1 point)Save Question 1Save
The DNA of humans and chimpanzees is between ________ percent identical.

20 and 25

50 and 55

75 and 80

98 and 99
Question 2 (1 point)Save Question 2Save
________ has endured in some families because its symptoms usually do not appear until after the person already has passed the dominant gene to his or her children.

Huntington disease

Tay-Sachs disease

Cystic fibrosis

Hemophilia
Question 3 (1 point)Save Question 3Save
The most serious criticism of heritability estimates is that they

cannot be computed for complex traits, such as personality and intelligence.

underestimate the impact of heredity on development.

are difficult to compute for racial and ethnic minorities.

provide no precise information on how complex traits develop.
Question 4 (1 point)Save Question 4Save
Repeated exposure to high doses of radiation can cause

incomplete dominance.

mutation.

crossing over.

genetic imprinting.
Question 5 (1 point)Save Question 5Save
In both the United States and Canada,

much child care is substandard in quality.

national standards for child care have been slow to develop.

child care is funded by the federal government.

less than 5 percent of adolescents leave high school without a diploma.
Question 6 (1 point)Save Question 6Save
Of all Western nations, ________ has the highest percentage of extremely poor children.

the United States

Brazil

Canada

Germany
Question 7 (1 point)Save Question 7Save
The sickle cell allele

is more common among European Americans than African Americans.

is decreasing in regions of the world where the risk of malaria is high.

puts individuals at increased risk of malaria.

is more common among black Africans than African Americans.
Question 8 (1 point)Save Question 8Save
Of the following age groups, which does the most niche-picking?

infants

toddlers

preschoolers

adolescents
Question 9 (1 point)Save Question 9Save
________ sperm and ________ ova/ovum are produced each time meiosis is completed.

One; four

Four; one

Millions of; two

Millions of; several hundred
Question 10 (1 point)Save Question 10Save
In one study, boys with a gene known to predispose humans to aggression were no more aggressive than boys without this gene, unless they had a history of severe child abuse. This finding supports the concept of

nicke-picking.

epigenesis.

canalization.

range of reaction.
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