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The X chromosome is larger than the Y.

A) True
B) False

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Which of the following is NOT an X-linked disorder?


A) red-color blindness
B) green-colorblindness
C) Huntington's disease
D) hemophilia

E) A) and C)
F) None of the above

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The observable physical features of an organism comprise its __________.


A) genotype
B) phenotype
C) allele frequency
D) recessive allele

E) None of the above
F) A) and B)

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With regards to IQ tests,heritability scores only apply within a population.

A) True
B) False

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It is likely that every individual carries a mutation in some gene.

A) True
B) False

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Which of the following best defines the term genotype?


A) the actual alleles an organism carries
B) the physical expression of an organisms genes
C) the role of the environment plays in gene expression
D) an organisms haploid gametes

E) A) and B)
F) None of the above

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Explain the mechanics of the ABO blood system.What is the relationship between genotype and phenotype within this system? Be sure to include the terms recessive,dominant,and codominant.

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The ABO blood system is a classification...

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The closer genes are to each other on a chromosome __________.


A) the more likely they are to be separated due to crossing over
B) the less likely they are to be separated due to crossing over
C) the more likely they are to be linked in mitosis
D) the less likely they are to be linked

E) All of the above
F) C) and D)

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The popularity of the eugenics movement waned in the United States __________.


A) by the 1920s
B) after WWII
C) in the late twentieth century
D) before WWII

E) B) and D)
F) B) and C)

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Outline and explain Mendel's postulates.

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Mendel's postulates, also known as Mende...

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Regulatory regions are likely to play a stronger role than structural genes in creating variations between related species.

A) True
B) False

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The Eugenics movement was popular with __________.


A) recent immigrants
B) "lower class" people
C) women
D) all of these

E) A) and B)
F) A) and C)

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In Mendel's experiments,the F1 generation __________.


A) was a mating of two lines that were true-breeding
B) had a 3:1 ratio in the expression of the original parental lines
C) revealed dominant and recessive traits
D) was a mating of different species

E) All of the above
F) A) and D)

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Environmental factors play little to no role in determining obesity.

A) True
B) False

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A point mutation occurs when __________ is changed.


A) a single gene
B) an allele pair is changed
C) an introns is changed
D) a single base in a gene

E) A) and B)
F) None of the above

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In what ways can mutation be good?

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Mutations are changes in the DNA sequenc...

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An autosomal dominant disease occurs when an individual is __________.


A) heterozygous for a dominant,disease-causing allele
B) codominant for a recessive,disease-causing allele
C) homozygous for a recessive,disease-causing allele
D) none of these

E) A) and D)
F) C) and D)

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Polygenic traits __________.


A) are usually caused by single genes
B) are easily explained by Mendelian genetics
C) appear as a continuum in a population
D) all of these

E) B) and C)
F) None of the above

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Structural genes __________.


A) contain information to make proteins
B) are surrounded be regulatory regions
C) may be similar across species
D) all of these

E) C) and D)
F) A) and B)

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Which of the following is caused by an insertion mutation?


A) sickle cell disease
B) Down's syndrome
C) Hasburgs face
D) Huntington disease

E) A) and C)
F) None of the above

Correct Answer

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