Question 1

What information can be inferred about genes that are located on different chromosomes?

Accepted Answer

A)  These genes are inherited independently of each other. 
B)  Only the dominant alleles of these genes tend to be inherited together. 
C)  These genes are always inherited together. 
D)  These genes are more likely to undergo mutation. 
A)  These genes are inherited independently of each other. 
B)  Only the dominant alleles of these genes tend to be inherited together. 
C)  These genes are always inherited together. 
D)  These genes are more likely to undergo mutation.

Question 2

How many different kinds of gametes can be made by an individual with the genotype AaBb?

Accepted Answer

A)  2 
B)  4 
C)  8 
D)  16 
A)  2 
B)  4 
C)  8 
D)  16

Question 3

What factor(s) typically influence a trait that shows continuous variation?

Accepted Answer

A)  genetic factors only 
B)  environmental factors only 
C)  both genetic and environmental factors 
D)  neither genetic nor environmental factors 
A)  genetic factors only 
B)  environmental factors only 
C)  both genetic and environmental factors 
D)  neither genetic nor environmental factors

Question 4

Which situation demonstrates only the genetic influence on a trait?

Accepted Answer

A)  Hair dye turns Angela's brown hair to red. 
B)  Sandy's hair becomes blonder when she spends time out in the sun. 
C)  Jen has brown hair, just like her mother and father. 
D)  Identical twins Kiera and Tanya have different colored hair. 
A)  Hair dye turns Angela's brown hair to red. 
B)  Sandy's hair becomes blonder when she spends time out in the sun. 
C)  Jen has brown hair, just like her mother and father. 
D)  Identical twins Kiera and Tanya have different colored hair.

Question 5

What term describes a trait that is controlled by many genes?

Accepted Answer

A)  dihybrid 
B)  dominant 
C)  heritable 
D)  polygenic 
A)  dihybrid 
B)  dominant 
C)  heritable 
D)  polygenic

Question 6

Which genotype would have an advantage if a recessive allele changed cellular proteins that led to circulatory problems and premature death?

Accepted Answer

A)  Any homozygous individual will always have an advantage over any heterozygous individual. 
B)  Any heterozygous individual will always have an advantage over any homozygous individual. 
C)  Any homozygous dominant individual will always have a disadvantage compared to any heterozygous individual. 
D)  Any heterozygous individual will have an advantage over any homozygous recessive individual. 
A)  Any homozygous individual will always have an advantage over any heterozygous individual. 
B)  Any heterozygous individual will always have an advantage over any homozygous individual. 
C)  Any homozygous dominant individual will always have a disadvantage compared to any heterozygous individual. 
D)  Any heterozygous individual will have an advantage over any homozygous recessive individual.

Question 7

What is represented by the difference between the lowest and highest values on the x-axis of a normal distribution curve for the population that is being studied?

Accepted Answer

A)  bell-shaped curve 
B)  mean value 
C)  variance 
D)  frequency distribution 
A)  bell-shaped curve 
B)  mean value 
C)  variance 
D)  frequency distribution

Question 8

Cystic fibrosis is caused by the allele f, which is completely recessive to the normal dominant allele F. Consider a couple who both have the genotype Ff. What is the chance that their second child will develop cystic fibrosis?

Accepted Answer

A)  25% 
B)  50% 
C)  75% 
D)  100% 
E)  It depends on which alleles were inherited by their first child. 
A)  25% 
B)  50% 
C)  75% 
D)  100% 
E)  It depends on which alleles were inherited by their first child.

Question 9

If a scientist is studying the heritability of IQ, which people would show the highest correlation between their IQ scores?

Accepted Answer

A)  two unrelated children 
B)  a child and his mother 
C)  monozygotic twins 
D)  dizygotic twins 
A)  two unrelated children 
B)  a child and his mother 
C)  monozygotic twins 
D)  dizygotic twins

Question 10

What are homologous chromosomes?

Accepted Answer

A)  chromosome that almost always contain identical alleles 
B)  chromosomes that generally contain the same genes 
C)  chromosomes that are inherited together because they don't separate during meiosis 
D)  chromosomes that are fewer in body cells than in gametes 
A)  chromosome that almost always contain identical alleles 
B)  chromosomes that generally contain the same genes 
C)  chromosomes that are inherited together because they don't separate during meiosis 
D)  chromosomes that are fewer in body cells than in gametes

Question 11

What are the alternate forms of a gene?

Accepted Answer

A)  alleles 
B)  chromosomes 
C)  gametes 
D)  homologues 
A)  alleles 
B)  chromosomes 
C)  gametes 
D)  homologues

Question 12

What macromolecule is made from the instructions contained in a typical gene?

Accepted Answer

A)  ATP 
B)  phospholipid 
C)  polysaccharide 
D)  protein 
A)  ATP 
B)  phospholipid 
C)  polysaccharide 
D)  protein

Question 13

-According to this graph, what can be concluded about immunity in these birds?

Accepted Answer

A)  The heritability value is approximately 0.50. 
B)  Genes explain all the variation in immunity among birds in this population. 
C)  Environment still plays a role in these birds' immunity, even though heritability is high. 
D)  The heritability of immunity follows a bell-shaped curve, indicating a normal distribution. 
A)  The heritability value is approximately 0.50. 
B)  Genes explain all the variation in immunity among birds in this population. 
C)  Environment still plays a role in these birds' immunity, even though heritability is high. 
D)  The heritability of immunity follows a bell-shaped curve, indicating a normal distribution.

Question 14

What conclusion was based on experiments with "maze-bright" and "maze-dull" rats?

Accepted Answer

A)  An enriched environment increases maze-running ability only in dull rats. 
B)  A poor environment adversely affects maze-running ability in both bright and dull rats. 
C)  Maze-running ability is highly heritable and unaffected by environment. 
D)  Maze-running ability is based entirely on environment and unaffected by genes. 
A)  An enriched environment increases maze-running ability only in dull rats. 
B)  A poor environment adversely affects maze-running ability in both bright and dull rats. 
C)  Maze-running ability is highly heritable and unaffected by environment. 
D)  Maze-running ability is based entirely on environment and unaffected by genes.

Question 15

What are the specialized cells used for sexual reproduction (for example, sperm cells)?

Accepted Answer

The answer of What are the specialized cells used for...

Question 16

What information can be inferred if the estimated heritability of a trait is approximately 0.50?

Accepted Answer

A)  The environment must have little to no influence over the expression of the trait. 
B)  Genes exclusively control the expression of the trait in at least 50% of the population. 
C)  At least 50% of the variation in the trait in the population is due to genetic differences. 
D)  The environment completely controls the variation in the trait in the population. 
A)  The environment must have little to no influence over the expression of the trait. 
B)  Genes exclusively control the expression of the trait in at least 50% of the population. 
C)  At least 50% of the variation in the trait in the population is due to genetic differences. 
D)  The environment completely controls the variation in the trait in the population.

Question 17

What other term describes fraternal twins?

Accepted Answer

A)  dizygotic 
B)  identical 
C)  monozygotic 
D)  heterozygous 
A)  dizygotic 
B)  identical 
C)  monozygotic 
D)  heterozygous

Question 18

In pea plants, the allele for purple flowers (P) is dominant to the allele for white flowers (p). In a cross between a purple-flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers. Which cross would provide such results?

Accepted Answer

A)  pp × pp 
B)  Pp × Pp 
C)  PP × PP 
D)  PP × pp 
A)  pp × pp 
B)  Pp × Pp 
C)  PP × PP 
D)  PP × pp

Question 19

When would monozygotic (identical) twins be produced?

Accepted Answer

A)  One sperm fertilizes two different eggs. 
B)  One egg is fertilized by two different sperm. 
C)  One embryo splits into two embryos. 
D)  Two different sperm fertilize two different eggs. 
A)  One sperm fertilizes two different eggs. 
B)  One egg is fertilized by two different sperm. 
C)  One embryo splits into two embryos. 
D)  Two different sperm fertilize two different eggs.

Question 20

When does the segregation of alleles occur?

Accepted Answer

A)  Homologous chromosomes separate during meiosis. 
B)  Homologous chromosomes separate during mitosis. 
C)  Sister chromatids separate during meiosis. 
D)  Sister chromatids separate during mitosis. 
A)  Homologous chromosomes separate during meiosis. 
B)  Homologous chromosomes separate during mitosis. 
C)  Sister chromatids separate during meiosis. 
D)  Sister chromatids separate during mitosis.

Exam 7: Are You Only As Smart As Your Genes Mendelian and Quantitative Genetics

What information can be inferred about genes that are located on different chromosomes?

How many different kinds of gametes can be made by an individual with the genotype AaBb?

What factor(s) typically influence a trait that shows continuous variation?

Which situation demonstrates only the genetic influence on a trait?

What term describes a trait that is controlled by many genes?

Which genotype would have an advantage if a recessive allele changed cellular proteins that led to circulatory problems and premature death?

What is represented by the difference between the lowest and highest values on the x-axis of a normal distribution curve for the population that is being studied?

Cystic fibrosis is caused by the allele f, which is completely recessive to the normal dominant allele F. Consider a couple who both have the genotype Ff. What is the chance that their second child will develop cystic fibrosis?

If a scientist is studying the heritability of IQ, which people would show the highest correlation between their IQ scores?

What are homologous chromosomes?

What are the alternate forms of a gene?

What macromolecule is made from the instructions contained in a typical gene?

-According to this graph, what can be concluded about immunity in these birds?

What conclusion was based on experiments with "maze-bright" and "maze-dull" rats?

What are the specialized cells used for sexual reproduction (for example, sperm cells)?

What information can be inferred if the estimated heritability of a trait is approximately 0.50?

What other term describes fraternal twins?

In pea plants, the allele for purple flowers (P) is dominant to the allele for white flowers (p). In a cross between a purple-flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers. Which cross would provide such results?

When would monozygotic (identical) twins be produced?

When does the segregation of alleles occur?

Can Science Cure the Common Cold Introduction to the Scientific Method

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Is It Possible to Supplement Your Way to Better Performance and Health

Body Weight and Health: Enzymes, Metabolism, and Cellular Respiration

Life in the Greenhouse: Photosynthesis and Climate Change

Cancer: DNA Synthesis, Mitosis, and Meiosis

DNA Detective: Complex Patterns of Inheritance and Dna Profiling

Genetically Modified Organisms: Gene Expression, Mutation,

Where Did We Come From the Evidence for Evolution

An Evolving Enemy: Natural Selection

Who Am I Species and Races

The Greatest Species on Earth Biodiversity and Classification

Is the Human Population Too Large Population Ecology

Conserving Biodiversity: Community and Ecosystem Ecology

Where Do You Live Climate and Biomes

Organ Donation: Tissues and Organs

Binge Drinking: the Digestive and Urinary Systems

Clearing the Air: Respiratory and Cardiovascular Systems

Vaccination: Protection and Prevention or Peril Immune System,

Human Sex Differences: Endocrine, Skeletal, and Muscular Systems

Is There Something in the Water Reproductive and Developmental Biology

Study Drugs: Brain Boost or Brain Drain Brain Structure and Function

Feeding the World: Plant Structure and Growth

Growing a Green Thumb: Plant Physiology

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