Question 1

Human colorblindness is sex-linked.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following terms is represented by word descriptions,such as brown or tall?

Accepted Answer

A) phenotype 
B) homozygous 
C) allele 
D) genotype 
E) dominance 
A) phenotype 
B) homozygous 
C) allele 
D) genotype 
E) dominance

Question 3

When an organism has two different alleles for a particular trait,which term best describes this condition?

Accepted Answer

A) gene locus 
B) genotype 
C) heterozygous 
D) homozygous 
E) phenotype 
A) gene locus 
B) genotype 
C) heterozygous 
D) homozygous 
E) phenotype

Question 4

Which of the following symptoms might be found in a patient with Marfan syndrome but would not be useful for diagnosing that genetic disease?

Accepted Answer

A) an inability to clot blood 
B) poor eyesight 
C) disproportionately long arms and legs 
D) a weakened aorta 
E) disproportionately long hands and feet 
A) an inability to clot blood 
B) poor eyesight 
C) disproportionately long arms and legs 
D) a weakened aorta 
E) disproportionately long hands and feet

Question 5

A doctor inserts a long needle into the uterus and removes some fluid to perform a genetic test.Which of the following procedures did the doctor perform?

Accepted Answer

A) amniocentesis 
B) chorionic villi sampling 
C) phenotype analysis 
D) preimplantation genetic diagnosis 
E) testcross 
A) amniocentesis 
B) chorionic villi sampling 
C) phenotype analysis 
D) preimplantation genetic diagnosis 
E) testcross

Question 6

Which of the following would be an addition to Mendel's Law of segregation?

Accepted Answer

A) One factor must be dominant and one factor recessive in each individual 
B) Factors separate from each other during gamete formation 
C) Each gamete contains one copy of each factor 
D) Fertilization restores the presence of two factors 
E) Each individual contains two factors for each trait 
A) One factor must be dominant and one factor recessive in each individual 
B) Factors separate from each other during gamete formation 
C) Each gamete contains one copy of each factor 
D) Fertilization restores the presence of two factors 
E) Each individual contains two factors for each trait

Question 7

Figure:  
-This figure shows a human pedigree.Based on the information presented in this figure,what type of disorder would this be?

Accepted Answer

A) codominant 
B) autosomal dominant 
C) incomplete dominant 
D) autosomal recessive 
E) polygenic 
A) codominant 
B) autosomal dominant 
C) incomplete dominant 
D) autosomal recessive 
E) polygenic

Question 8

When two or more sets of alleles affect the same trait,it is referred to as

Accepted Answer

A) codominant. 
B) a double-trait cross. 
C) polygenic inheritance. 
D) polygenic dominance. 
E) a single-trait cross. 
A) codominant. 
B) a double-trait cross. 
C) polygenic inheritance. 
D) polygenic dominance. 
E) a single-trait cross.

Question 9

When a trait has more than two different forms,the gene has

Accepted Answer

A) inbreeding 
B) pleiotropic effects 
C) incomplete dominance 
D) phenotypic effects 
E) multiple alleles 
A) inbreeding 
B) pleiotropic effects 
C) incomplete dominance 
D) phenotypic effects 
E) multiple alleles

Question 10

A woman who can roll her tongue (presumably dominant)is married to a man who cannot.Two of their four children can roll their tongues and two cannot.What is the genotype of the parents?

Accepted Answer

A) woman AA,man aa 
B) woman Aa,man Aa 
C) woman Aa,man AA 
D) woman aa,man aa 
E) woman Aa,man aa 
A) woman AA,man aa 
B) woman Aa,man Aa 
C) woman Aa,man AA 
D) woman aa,man aa 
E) woman Aa,man aa

Exam 10: Patterns of Genetic Inheritance

Human colorblindness is sex-linked.

Which of the following terms is represented by word descriptions,such as brown or tall?

When an organism has two different alleles for a particular trait,which term best describes this condition?

Which of the following symptoms might be found in a patient with Marfan syndrome but would not be useful for diagnosing that genetic disease?

A doctor inserts a long needle into the uterus and removes some fluid to perform a genetic test.Which of the following procedures did the doctor perform?

Which of the following would be an addition to Mendel's Law of segregation?

Figure: -This figure shows a human pedigree.Based on the information presented in this figure,what type of disorder would this be?

When two or more sets of alleles affect the same trait,it is referred to as

When a trait has more than two different forms,the gene has

A woman who can roll her tongue (presumably dominant)is married to a man who cannot.Two of their four children can roll their tongues and two cannot.What is the genotype of the parents?

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