Question 1

What conclusion can be made by the production of smarter than average children with doctorate-category sperm donations?

Accepted Answer

A)  Because intelligence has no genetic basis, there's no real reason to expect children produced by this type of sperm to be smarter than average. 
B)  Children produced by this type of sperm have an approximately 72% chance of being more intelligent than average. 
C)  Children produced by this type of sperm will be smarter than average only if the mother has a high IQ. 
D)  There is currently no way to predict whether children produced by this type of sperm will be smarter than average. 
A)  Because intelligence has no genetic basis, there's no real reason to expect children produced by this type of sperm to be smarter than average. 
B)  Children produced by this type of sperm have an approximately 72% chance of being more intelligent than average. 
C)  Children produced by this type of sperm will be smarter than average only if the mother has a high IQ. 
D)  There is currently no way to predict whether children produced by this type of sperm will be smarter than average.

Question 2

What is CFTR/CFTR-DF508?

Accepted Answer

A)  the dominant allele that causes cystic fibrosis 
B)  the recessive allele that causes cystic fibrosis 
C)  the homozygous genotype of a cystic fibrosis victim 
D)  the heterozygous genotype of a carrier of cystic fibrosis 
A)  the dominant allele that causes cystic fibrosis 
B)  the recessive allele that causes cystic fibrosis 
C)  the homozygous genotype of a cystic fibrosis victim 
D)  the heterozygous genotype of a carrier of cystic fibrosis

Question 3

During which process do gametes fuse together?

Accepted Answer

A)  embryonic development 
B)  fertilization 
C)  meiosis 
D)  mitosis 
A)  embryonic development 
B)  fertilization 
C)  meiosis 
D)  mitosis

Question 4

In a certain plant species, thick-shelled seeds are caused by the dominant allele T. Thin-shelled seeds are caused by the recessive allele t. What is the genotype of an individual with thin-shelled seeds?

Accepted Answer

A)  TT 
B)  tt 
C)  Tt 
D)  tt or Tt 
A)  TT 
B)  tt 
C)  Tt 
D)  tt or Tt

Question 5

Which situation most likely describes a recessive genetic disorder?

Accepted Answer

A)  The mutant allele of the gene encodes a completely nonfunctional protein. 
B)  The mutant allele of the gene encodes a protein that has both the normal function and a new, harmful function. 
C)  The mutant allele of the gene encodes a protein that has a new, harmful function. 
D)  The mutant allele of the gene encodes a protein with the normal function but twice the normal activity. 
A)  The mutant allele of the gene encodes a completely nonfunctional protein. 
B)  The mutant allele of the gene encodes a protein that has both the normal function and a new, harmful function. 
C)  The mutant allele of the gene encodes a protein that has a new, harmful function. 
D)  The mutant allele of the gene encodes a protein with the normal function but twice the normal activity.

Question 6

How did Gregor Mendel's research affect the science of his time?

Accepted Answer

A)  His research was not appreciated by the scientific community until after he died. 
B)  His focus on pea plants showed that pea plants have very few heritable traits. 
C)  His results could predict heritability in plants but not animals. 
D)  His research included detailed studies on polygenic traits. 
A)  His research was not appreciated by the scientific community until after he died. 
B)  His focus on pea plants showed that pea plants have very few heritable traits. 
C)  His results could predict heritability in plants but not animals. 
D)  His research included detailed studies on polygenic traits.

Question 7

What are the members of a pair of chromosomes (for example, the two copies of chromosome 1) called?

Accepted Answer

A)  alleles 
B)  gametes 
C)  homologous chromosomes 
D)  sister chromatids 
A)  alleles 
B)  gametes 
C)  homologous chromosomes 
D)  sister chromatids

Question 8

In humans, straight thumbs are caused by the dominant allele T, while individuals who are tt have thumbs that curve backward ("hitchhiker's thumb"). Consider a family in which the father has straight thumbs, and both the mother and their only child have curved thumbs. What is the chance that their next child will have curved thumbs?

Accepted Answer

A)  25% 
B)  50% 
C)  75% 
D)  100% 
A)  25% 
B)  50% 
C)  75% 
D)  100%

Question 9

According to one study, the heritability of IQ score in humans has a value of 0.52. What does this tell us about the role of "nature" versus "nurture" in determining intelligence in humans?

Accepted Answer

A)  Intelligence is a qualitative trait, affected by both genetics and the environment, and it can't be predicted by heritability scores. 
B)  Children of highly intelligent parents will likely be very intelligent, regardless of the environment in which they're raised. 
C)  There is an approximately equal chance that children of intelligent parents will be as intelligent as their parents, depending on the environment in which they're raised. 
D)  High heritability values don't mean that the intelligence of children can be accurately predicted because the environment plays a strong role. 
A)  Intelligence is a qualitative trait, affected by both genetics and the environment, and it can't be predicted by heritability scores. 
B)  Children of highly intelligent parents will likely be very intelligent, regardless of the environment in which they're raised. 
C)  There is an approximately equal chance that children of intelligent parents will be as intelligent as their parents, depending on the environment in which they're raised. 
D)  High heritability values don't mean that the intelligence of children can be accurately predicted because the environment plays a strong role.

Question 10

Half of the gametes produced by an organism with the genotype Aa will receive the A allele, while half will receive the a allele. What process produces such results?

Accepted Answer

A)  independent assortment 
B)  mutation 
C)  random fertilization 
D)  segregation 
A)  independent assortment 
B)  mutation 
C)  random fertilization 
D)  segregation

Question 11

What type of a trait results in the large variation in shoe size among humans?

Accepted Answer

A)  dizygotic 
B)  qualitative 
C)  quantitative 
D)  polygenic 
A)  dizygotic 
B)  qualitative 
C)  quantitative 
D)  polygenic

Question 12

-How many different types of offspring (genotypes) are possible as a result of this cross, according to the Punnett square in the diagram?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 13

Which process creates new alleles to affect genetic diversity in a population?

Accepted Answer

A)  independent assortment 
B)  random fertilization 
C)  segregation 
D)  mutation 
A)  independent assortment 
B)  random fertilization 
C)  segregation 
D)  mutation

Question 14

What percentage of alleles will be shared by certain siblings due to the law of independent assortment?

Accepted Answer

A)  Monozygotic twins will have no alleles in common. 
B)  Monozygotic twins will have about 50% of their alleles in common. 
C)  Two typical siblings will have about 50% of their alleles in common. 
D)  Dizygotic twins will have 100% of their alleles in common. 
A)  Monozygotic twins will have no alleles in common. 
B)  Monozygotic twins will have about 50% of their alleles in common. 
C)  Two typical siblings will have about 50% of their alleles in common. 
D)  Dizygotic twins will have 100% of their alleles in common.

Question 15

What type of trait shows continuous variation, where there is a large range of phenotypes in a population (for example, height or skin color)?

Accepted Answer

The answer of What type of trait shows continuous variation,...

Question 16

What was the purpose of the IQ test developed by Alfred Binet?

Accepted Answer

A)  to measure intelligence based on the most accepted theory of the time 
B)  to compare the intelligence of different cultural subpopulations in the general population 
C)  to determine the relative effects of genes and environment on intelligence 
D)  to identify school children in need of remedial help 
A)  to measure intelligence based on the most accepted theory of the time 
B)  to compare the intelligence of different cultural subpopulations in the general population 
C)  to determine the relative effects of genes and environment on intelligence 
D)  to identify school children in need of remedial help

Question 17

What genotype would be found in an individual who is a carrier for a recessive genetic disorder but does not have symptoms of the disorder?

Accepted Answer

A)  heterozygous 
B)  homozygous for the recessive allele 
C)  homozygous for the dominant allele 
D)  either homozygous for the recessive allele or heterozygous 
A)  heterozygous 
B)  homozygous for the recessive allele 
C)  homozygous for the dominant allele 
D)  either homozygous for the recessive allele or heterozygous

Question 18

What type of genetic cross involves two traits?

Accepted Answer

The answer of What type of genetic cross involves two...

Question 19

What is the estimated influence of genes (as opposed to environment) on a trait called?

Accepted Answer

The answer of What is the estimated influence of genes...

Question 20

What is the growth and reproduction of an individual called?

Accepted Answer

A)  life cycle 
B)  genotype 
C)  phenotype 
D)  normal distribution 
A)  life cycle 
B)  genotype 
C)  phenotype 
D)  normal distribution

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

What conclusion can be made by the production of smarter than average children with doctorate-category sperm donations?

What is CFTR/CFTR-DF508?

During which process do gametes fuse together?

In a certain plant species, thick-shelled seeds are caused by the dominant allele T. Thin-shelled seeds are caused by the recessive allele t. What is the genotype of an individual with thin-shelled seeds?

Which situation most likely describes a recessive genetic disorder?

How did Gregor Mendel's research affect the science of his time?

What are the members of a pair of chromosomes (for example, the two copies of chromosome 1) called?

According to one study, the heritability of IQ score in humans has a value of 0.52. What does this tell us about the role of "nature" versus "nurture" in determining intelligence in humans?

Half of the gametes produced by an organism with the genotype Aa will receive the A allele, while half will receive the a allele. What process produces such results?

What type of a trait results in the large variation in shoe size among humans?

-How many different types of offspring (genotypes) are possible as a result of this cross, according to the Punnett square in the diagram?

Which process creates new alleles to affect genetic diversity in a population?

What percentage of alleles will be shared by certain siblings due to the law of independent assortment?

What type of trait shows continuous variation, where there is a large range of phenotypes in a population (for example, height or skin color)?

What was the purpose of the IQ test developed by Alfred Binet?

What genotype would be found in an individual who is a carrier for a recessive genetic disorder but does not have symptoms of the disorder?

What type of genetic cross involves two traits?

What is the estimated influence of genes (as opposed to environment) on a trait called?

What is the growth and reproduction of an individual called?

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Cancer: DNA Synthesis, Mitosis, and Meiosis

DNA Detective: Complex Patterns of Inheritance and Dna Profiling

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The Greatest Species on Earth Biodiversity and Classification

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Vaccination: Protection and Prevention or Peril Immune System,

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