Question 1

If the parents are AO and BO genotypes for the ABO blood group, their children could include which of the following genotypes?

Accepted Answer

A)   AO and BO only
B)   AO, BO, and AB only
C)   AA, BB, and AB only
D)   AO, BO, and OO only
E)   AO, BO, AB, and OO onlyF) A) and B)
G) A) and E)

Question 2

What aspect of Mendel's background gave him the necessary tools to discover the laws of inheritance?

Accepted Answer

A)   He was a monk.
B)   He was a teacher.
C)   He lived in Austria.
D)   He had studied mathematics and probability.
E)   He corresponded with Charles Darwin.F) C) and D)
G) B) and C)

Question 3

Which allele combination represents a recessive individual?

Accepted Answer

A)   aa
B)   AA
C)   Aa
D)   None of these represent a recessive individualE) C) and D)
F) A) and D)

Question 4

Which of the following crosses would always result in offspring that only display the dominant phenotype?

Accepted Answer

A)   TT x tt
B)   Tt x Tt
C)   TT x TT
D)   Tt x tt
E)   Two of the crosses will always display the dominant phenotypeF) B) and E)
G) A) and E)

Question 5

Polygenic traits such as height or weight are often influenced by the environment of the organism.

Accepted Answer

A) True 
 B)False

Question 6

Create a pedigree chart that depicts an inheritance pattern of an autosomal dominant characteristic. Use circles to depict females and squares to depict males. Colored shapes represent affected individuals (expressing a trait) and uncolored shapes are unaffected (do not express a trait).

Accepted Answer

Answers may vary. This figure depicts th...

Question 7

Which factor led to Mendel's success as a scientist?

Accepted Answer

A)   applied mathematics to the field of science
B)   followed the scientific method very closely
C)   kept detailed records of his research
D)   all of these factors made Mendel successfulE) A) and D)
F) A) and B)

Question 8

Which of the following is NOT a trait that is the result of, or is affected by, the interaction of more than one gene?

Accepted Answer

A)   human skin color
B)   cleft palate
C)   height
D)   sickle cell anemiaE) B) and C)
F) C) and D)

Question 9

The particulate theory of inheritance

Accepted Answer

A)   preceded Mendel's research by a century.
B)   was proposed by Mendel.
C)   is based on particles or hereditary units we now call genes.
D)   All of the choices are correct.
E)   Two of the above.F) B) and E)
G) B) and D)

Question 10

If white eyes are produced by a recessive allele, what is the likely genotype of a white-eyed individual?

Accepted Answer

A)   rr
B)   Rr
C)   RR
D)   RBE) B) and C)
F) A) and D)

Question 11

The reason why some individuals who inherit polydactyly (having an extra digit on the hand or feet)  but do not express the trait is due to ________.

Accepted Answer

A)   incomplete penetrance
B)   incomplete dominance
C)   gene linkage
D)   pleiotropy
E)   none of the answers are correctF) A) and B)
G) All of the above

Question 12

Cystic fibrosis and Phenylketonuria are common autosomal dominant disorders.

Accepted Answer

A) True 
 B)False

Question 13

The pedigree chart depicts the inheritance pattern of ____. Circles depict females and squares depict males. Colored shapes represent affected individuals (expressing a trait)  and uncolored shapes are unaffected (do not express a trait) .

Accepted Answer

A)   an autosomal recessive characteristic with both parents being heterozygous
B)   an autosomal dominant characteristic with both parents being homozygous dominant
C)   an autosomal recessive characteristic with both parents being homozygous recessive
D)   none.E) A) and B)
F) A) and C)

Question 14

Which statement about the blending concept of inheritance is correct?

Accepted Answer

A)   A cross between a tall man and a short woman would always produce children of medium height.
B)   A cross between a tall man and a short woman can produce some children that are tall while others are short.
C)   A cross between a tall man and a short woman produce tall children who can then produce short grandchildren.
D)   Genetic material is unstable which accounts for such a wide diversity in our offspring.E) A) and B)
F) A) and D)

Question 15

In a classic Mendelian monohybrid cross between a homozygous dominant parent and a homozygous recessive parent, which generation is always completely heterozygous?

Accepted Answer

A)   F1 generation
B)   F2 generation
C)   F3 generation
D)   P generationE) A) and B)
F) A) and C)

Question 16

If a pea plant shows a recessive phenotype,

Accepted Answer

A)   the genotype may be TT or Tt.
B)   the genotype may be Tt or tt.
C)   the genotype can only be TT.
D)   the genotype can only be tt.
E)   the genotype may be TT, Tt, or tt.F) C) and D)
G) None of the above

Question 17

If black fur is produced by a recessive allele, which genotype is most likely to produce a black individual?

Accepted Answer

A)   bb
B)   BB
C)   Bb
D)   CbE) A) and B)
F) C) and D)

Question 18

Pleiotropy typically

Accepted Answer

A)   causes various symptoms to appear even though it only impacts a single gene.
B)   causes a single symptom to appear even though it only impacts a single gene.
C)   causes various symptoms to appear even though it only impacts multiple genes.
D)   causes a single symptom to appear even though it only impacts multiple genes.E) A) and D)
F) C) and D)

Question 19

Which is associated with the inability to produce factor VIII in the blood?

Accepted Answer

A)   Williams syndrome
B)   trisomy 21
C)   color-blindness
D)   Hemophilia A
E)   Duchenne muscular dystrophyF) None of the above
G) A) and E)

Question 20

If an individual is heterozygous for a particular trait, the gametes that individual produces will contain 3/4 dominant and 1/4 recessive alleles.

Accepted Answer

A) True 
 B)False

Exam 11: Mendelian Patterns of Inheritance

If an individual is heterozygous for a particular trait, the gametes that individual produces will contain 3/4 dominant and 1/4 recessive alleles.

Correct AnswerverifiedShow Answer

The reason why some individuals who inherit polydactyly (having an extra digit on the hand or feet) but do not express the trait is due to ________.

Correct AnswerverifiedShow Answer

If a pea plant shows a recessive phenotype,

Correct AnswerverifiedShow Answer

The pedigree chart depicts the inheritance pattern of ____. Circles depict females and squares depict males. Colored shapes represent affected individuals (expressing a trait) and uncolored shapes are unaffected (do not express a trait) .

Correct AnswerverifiedShow Answer

Which of the following crosses would always result in offspring that only display the dominant phenotype?

Correct AnswerverifiedShow Answer

If the parents are AO and BO genotypes for the ABO blood group, their children could include which of the following genotypes?

Correct AnswerverifiedShow Answer

The particulate theory of inheritance

Correct AnswerverifiedShow Answer

Which of the following is NOT a trait that is the result of, or is affected by, the interaction of more than one gene?

Correct AnswerverifiedShow Answer

Cystic fibrosis and Phenylketonuria are common autosomal dominant disorders.

Correct AnswerverifiedShow Answer

Create a pedigree chart that depicts an inheritance pattern of an autosomal dominant characteristic. Use circles to depict females and squares to depict males. Colored shapes represent affected individuals (expressing a trait) and uncolored shapes are unaffected (do not express a trait).

Correct AnswerverifiedAnswers may vary. This figure depicts th...View AnswerShow Answer

Which statement about the blending concept of inheritance is correct?

Correct AnswerverifiedShow Answer

What aspect of Mendel's background gave him the necessary tools to discover the laws of inheritance?

Correct AnswerverifiedShow Answer

If white eyes are produced by a recessive allele, what is the likely genotype of a white-eyed individual?

Correct AnswerverifiedShow Answer

If black fur is produced by a recessive allele, which genotype is most likely to produce a black individual?

Correct AnswerverifiedShow Answer

In a classic Mendelian monohybrid cross between a homozygous dominant parent and a homozygous recessive parent, which generation is always completely heterozygous?

Correct AnswerverifiedShow Answer

Which allele combination represents a recessive individual?

Correct AnswerverifiedShow Answer

Which factor led to Mendel's success as a scientist?

Correct AnswerverifiedShow Answer

Polygenic traits such as height or weight are often influenced by the environment of the organism.

Correct AnswerverifiedShow Answer

Which is associated with the inability to produce factor VIII in the blood?

Correct AnswerverifiedShow Answer

Pleiotropy typically

Correct AnswerverifiedShow Answer

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Answers may vary. This figure depicts th...
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