Question 1

A male with red-green colorblindness could have received the recessive gene for this condition from either parent.

Accepted Answer

A) True 
 B)False

Question 2

What do the traits of tongue roller, freckles, and dimples have in common?

Accepted Answer

A)  They all have multiple alleles.
B)  They are all recessive traits.
C)  They are all inherited by codominance.
D)  They are all dominant traits.
E)  They are all inherited by incomplete dominance.

Question 3

Inheritance of the ABO blood group is an example of

Accepted Answer

A)  complete dominance only.
B)  incomplete dominance only.
C)  sex-linked inheritance only.
D)  incomplete dominance and sex-linked inheritance.
E)  codominance and multiple alleles. E

Question 4

If a husband and wife are both carriers of albinism, which is a recessive trait with two alleles, what is the probability that each of their children will be albino?

Accepted Answer

A)  0%
B)  25%
C)  50%
D)  75%
E)  100%

Question 5

What blood types could the children have, if their mother was type A (Iᴬi) and their father was type B (Iᴮi) ?

Accepted Answer

A)  A or B
B)  O
C)  A, B, AB, or O
D)  AB or O
E)  A, B, or AB

Question 6

In coin toss experiments, as well as in traits inherited by children in the same family, each event is independent of all others; in other words, chance does not have a memory of previous events.

Accepted Answer

A) True 
 B)False  True

Question 7

In familial hypercholesterolemia, homozygous people with the abnormal gene have extremely high cholesterol, while heterozygous people have somewhat high cholesterol.  This type of inheritance is called

Accepted Answer

A)  complete dominance.
B)  incomplete dominance.
C)  multiple alleles.
D)  codominance.
E)  sex-linked inheritance.

Question 8

Astigmatism, a condition in which a defect in the curvature of the cornea or lens produces areas of blurred vision, is an example of a recessive trait.

Accepted Answer

A) True 
 B)False  False

Question 9

In sex-linked traits, the cells of all offspring contain two copies of the genes for these traits.

Accepted Answer

A) True 
 B)False

Question 10

If a person has two different alleles for a particular trait, then the person is ________ for that trait.

Accepted Answer

A)  recessive
B)  homozygous
C)  codominant
D)  dominant
E)  heterozygous

Question 11

In complete dominance, a dominant gene will be expressed if the person is either homozygous or heterozygous for that trait.

Accepted Answer

A) True 
 B)False

Question 12

The specific combination of alleles that a person inherits for a certain trait is called the

Accepted Answer

A)  locus.
B)  phenotype.
C)  genome.
D)  homologous chromosome.
E)  genotype.

Question 13

Carriers of a recessive trait are always heterozygous for that trait.

Accepted Answer

A) True 
 B)False

Question 14

Sex-linked traits are

Accepted Answer

A)  inherited from one of the sex chromosomes.
B)  only found in males.
C)  inherited from the X chromosome only.
D)  only found in females.
E)  inherited from the Y chromosome only,

Question 15

Colorblindness is an X chromosome-linked, recessive trait.  None of the children of a normal mother (XᶜXᶜ)and a colorblind father (XᶜY)could possibly be colorblind.

Accepted Answer

A) True 
 B)False

Exam 63: Genetics

A male with red-green colorblindness could have received the recessive gene for this condition from either parent.

Correct Answer
verified

What do the traits of tongue roller, freckles, and dimples have in common?

Correct Answer
verified

Inheritance of the ABO blood group is an example of

Correct Answer
verified
E

If a husband and wife are both carriers of albinism, which is a recessive trait with two alleles, what is the probability that each of their children will be albino?

Correct Answer
verified

What blood types could the children have, if their mother was type A (Iᴬi) and their father was type B (Iᴮi) ?

Correct Answer
verified

In coin toss experiments, as well as in traits inherited by children in the same family, each event is independent of all others; in other words, chance does not have a memory of previous events.

Correct Answer
verified
True

In familial hypercholesterolemia, homozygous people with the abnormal gene have extremely high cholesterol, while heterozygous people have somewhat high cholesterol. This type of inheritance is called

Correct Answer
verified

Astigmatism, a condition in which a defect in the curvature of the cornea or lens produces areas of blurred vision, is an example of a recessive trait.

Correct Answer
verified
False

In sex-linked traits, the cells of all offspring contain two copies of the genes for these traits.

Correct Answer
verified

If a person has two different alleles for a particular trait, then the person is ________ for that trait.

Correct Answer
verified

In complete dominance, a dominant gene will be expressed if the person is either homozygous or heterozygous for that trait.

Correct Answer
verified

The specific combination of alleles that a person inherits for a certain trait is called the

Correct Answer
verified

Carriers of a recessive trait are always heterozygous for that trait.

Correct Answer
verified

Sex-linked traits are

Correct Answer
verified

Colorblindness is an X chromosome-linked, recessive trait. None of the children of a normal mother (XᶜXᶜ)and a colorblind father (XᶜY)could possibly be colorblind.

Correct Answer
verified

Exam 63: Genetics

A male with red-green colorblindness could have received the recessive gene for this condition from either parent.

Correct AnswerverifiedShow Answer

What do the traits of tongue roller, freckles, and dimples have in common?

Correct AnswerverifiedShow Answer

Inheritance of the ABO blood group is an example of

Correct AnswerverifiedE

If a husband and wife are both carriers of albinism, which is a recessive trait with two alleles, what is the probability that each of their children will be albino?

Correct AnswerverifiedShow Answer

What blood types could the children have, if their mother was type A (Iᴬi) and their father was type B (Iᴮi) ?

Correct AnswerverifiedShow Answer

In coin toss experiments, as well as in traits inherited by children in the same family, each event is independent of all others; in other words, chance does not have a memory of previous events.

Correct AnswerverifiedTrue

In familial hypercholesterolemia, homozygous people with the abnormal gene have extremely high cholesterol, while heterozygous people have somewhat high cholesterol. This type of inheritance is called

Correct AnswerverifiedShow Answer

Astigmatism, a condition in which a defect in the curvature of the cornea or lens produces areas of blurred vision, is an example of a recessive trait.

Correct AnswerverifiedFalse

In sex-linked traits, the cells of all offspring contain two copies of the genes for these traits.

Correct AnswerverifiedShow Answer

If a person has two different alleles for a particular trait, then the person is ________ for that trait.

Correct AnswerverifiedShow Answer

In complete dominance, a dominant gene will be expressed if the person is either homozygous or heterozygous for that trait.

Correct AnswerverifiedShow Answer

The specific combination of alleles that a person inherits for a certain trait is called the

Correct AnswerverifiedShow Answer

Carriers of a recessive trait are always heterozygous for that trait.

Correct AnswerverifiedShow Answer

Sex-linked traits are

Correct AnswerverifiedShow Answer

Colorblindness is an X chromosome-linked, recessive trait. None of the children of a normal mother (XᶜXᶜ)and a colorblind father (XᶜY)could possibly be colorblind.

Correct AnswerverifiedShow Answer

Correct Answer
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E

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True

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False

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Correct Answer
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