Question 1

A person with the AB blood type expresses which markers on their red blood cell surface?

Accepted Answer

A)  only A 
B)  only B 
C)  A and B 
D)  They have no markers on their cell surface. 
E)  They have A, B, and O markers on their cell surface. 
A)  only A 
B)  only B 
C)  A and B 
D)  They have no markers on their cell surface. 
E)  They have A, B, and O markers on their cell surface. C

Question 2

You have a patient who needs a lot of blood.The patient is blood type A+.You have the following blood in stock.How many liters of blood can you give the patient before you will have to find other sources of blood?

Accepted Answer

A)  8 
B)  14 
C)  22 
D)  46 
E)  86 
A)  8 
B)  14 
C)  22 
D)  46 
E)  86 C

Question 3

How does codominance differ from incomplete dominance?

Accepted Answer

In incomplete dominance,the heterozygote is a separate phenotype midway between the two homozygous phenotypes.In codominance,the heterozygous condition completely expresses both phenotypes.

Question 4

Tracing a paternal line of inheritance usually involves

Accepted Answer

A)  sequencing the entire Y chromosome. 
B)  sequencing five or more coding regions on one autosome. 
C)  sequencing five or more coding regions on different autosomes. 
D)  STR analysis of the Y chromosome. 
E)  STR analysis of regions on at least ten different autosomes. 
A)  sequencing the entire Y chromosome. 
B)  sequencing five or more coding regions on one autosome. 
C)  sequencing five or more coding regions on different autosomes. 
D)  STR analysis of the Y chromosome. 
E)  STR analysis of regions on at least ten different autosomes.

Question 5

You have a patient who needs a lot of blood.The patient is blood type A−.How many different types of blood can this patient accept?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  8 
A)  1 
B)  2 
C)  3 
D)  4 
E)  8

Question 6

The SRY gene on the Y chromosome is responsible for

Accepted Answer

A)  female genitalia. 
B)  ovary suppression. 
C)  estrogen production. 
D)  testes development. 
E)  androgen receptors. 
A)  female genitalia. 
B)  ovary suppression. 
C)  estrogen production. 
D)  testes development. 
E)  androgen receptors.

Question 7

A person with B blood type marries someone with blood type A.They have children.What is the LARGEST percentage of their offspring that could have blood type O,if both parents are heterozygotes? (Draw a Punnett square to help you figure this out.)

Accepted Answer

A) 0% 
B) 25% 
C) 50% 
D) 75% 
E) We don't have enough information to answer this. 
A) 0% 
B) 25% 
C) 50% 
D) 75% 
E) We don't have enough information to answer this.

Question 8

Explain why the incidence of aneuploidy increases as a woman's age increases.

Accepted Answer

All of a woman's eggs are formed by the

Question 9

A karyotype from a person with Down syndrome would show

Accepted Answer

A)  three copies of chromosome 20. 
B)  nondisjunction of the sex chromosomes. 
C)  three copies of chromosome 21. 
D)  three copies of chromosome 22. 
E)  one copy of chromosome 21. 
A)  three copies of chromosome 20. 
B)  nondisjunction of the sex chromosomes. 
C)  three copies of chromosome 21. 
D)  three copies of chromosome 22. 
E)  one copy of chromosome 21.

Question 10

In O− blood,the "negative" means that there are no _____ surface markers.

Accepted Answer

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

Question 11

What are X-linked traits?

Accepted Answer

A)  Diseases or phenotypes that are determined by genes on an X chromosome. 
B)  Traits that only affect females since females have two X chromosomes. 
C)  Dominant traits located on X chromosomes. 
D)  Genes that are more likely to have an effect in males than females. 
E)  A and D 
A)  Diseases or phenotypes that are determined by genes on an X chromosome. 
B)  Traits that only affect females since females have two X chromosomes. 
C)  Dominant traits located on X chromosomes. 
D)  Genes that are more likely to have an effect in males than females. 
E)  A and D

Question 12

Why is amniocentesis usually performed?

Accepted Answer

A)  to detect fetal abnormalities by karyotyping 
B)  to detect problems with the placenta 
C)  to determine the sex of the fetus 
D)  to determine if gene therapy is indicated 
E)  to assess the risk of premature birth 
A)  to detect fetal abnormalities by karyotyping 
B)  to detect problems with the placenta 
C)  to determine the sex of the fetus 
D)  to determine if gene therapy is indicated 
E)  to assess the risk of premature birth

Question 13

Amniocentesis is

Accepted Answer

A)  the removal of fluid from the womb. 
B)  the removal of tissue from the placenta. 
C)  the chromosomal analysis of cells. 
D)  a listing of the alleles present at each gene. 
E)  a listing of the physical characteristics. 
A)  the removal of fluid from the womb. 
B)  the removal of tissue from the placenta. 
C)  the chromosomal analysis of cells. 
D)  a listing of the alleles present at each gene. 
E)  a listing of the physical characteristics.

Question 14

Zygotes with _______ usually cannot survive until birth.

Accepted Answer

A)  three X chromosomes 
B)  a single X chromosome 
C)  no X chromosome 
D)  two X chromosomes 
E)  an X and a Y chromosome 
A)  three X chromosomes 
B)  a single X chromosome 
C)  no X chromosome 
D)  two X chromosomes 
E)  an X and a Y chromosome

Question 15

Which of the following human chromosomes is passed on intact from father to son?

Accepted Answer

A)  X chromosome 
B)  Y chromosome 
C)  Chromosome 1 
D)  Chromosome 3 
E)  Chromosome 12 
A)  X chromosome 
B)  Y chromosome 
C)  Chromosome 1 
D)  Chromosome 3 
E)  Chromosome 12

Question 16

XXX,XO,XYY,and XXY conditions are the result of

Accepted Answer

A)  an error during mitosis. 
B)  an error during meiosis. 
C)  a mutation event. 
D)  an egg containing two nuclei. 
E)  more than one sperm fertilizing an egg. 
A)  an error during mitosis. 
B)  an error during meiosis. 
C)  a mutation event. 
D)  an egg containing two nuclei. 
E)  more than one sperm fertilizing an egg.

Question 17

What is the significance of the X and Y chromosome in terms of sexual identity?

Accepted Answer

A)  The X chromosome contains the SRY gene, which aids in the development of the ovaries. 
B)  The X and Y chromosomes aid in the production of ovaries and testes, respectively. These organs produce estrogen and testosterone, which in turn signal either female or male tissue to develop. 
C)  The SRY gene on the Y chromosome signals the testes to develop testosterone, which signals male tissues to develop. 
D)  A and B 
E)  B and C 
A)  The X chromosome contains the SRY gene, which aids in the development of the ovaries. 
B)  The X and Y chromosomes aid in the production of ovaries and testes, respectively. These organs produce estrogen and testosterone, which in turn signal either female or male tissue to develop. 
C)  The SRY gene on the Y chromosome signals the testes to develop testosterone, which signals male tissues to develop. 
D)  A and B 
E)  B and C

Question 18

All the male relatives of a color-blind man are also color blind.This man likely received the allele for color blindness from

Accepted Answer

A)  his father. 
B)  his uncle. 
C)  his maternal grandfather. 
D)  his paternal grandfather. 
E)  either his maternal or paternal grandfather. 
A)  his father. 
B)  his uncle. 
C)  his maternal grandfather. 
D)  his paternal grandfather. 
E)  either his maternal or paternal grandfather.

Question 19

All of the following are true of color blindness,EXCEPT

Accepted Answer

A)  it can be passed from a color-blind father to his son. 
B)  it can be passed from a color-blind mother to her son. 
C)  it can be passed from a color-blind grandfather, through his daughter, to her son. 
D)  it can be carried by a female who has normal color vision herself. 
E)  it only rarely occurs in females. 
A)  it can be passed from a color-blind father to his son. 
B)  it can be passed from a color-blind mother to her son. 
C)  it can be passed from a color-blind grandfather, through his daughter, to her son. 
D)  it can be carried by a female who has normal color vision herself. 
E)  it only rarely occurs in females.

Question 20

The rate of aneuploidy _____ as the age of the mother increases.

Accepted Answer

The answer of The rate of aneuploidy _____ as the...

Exam 12: Complex Inheritance Qa: Genetics

A person with the AB blood type expresses which markers on their red blood cell surface?

You have a patient who needs a lot of blood.The patient is blood type A+.You have the following blood in stock.How many liters of blood can you give the patient before you will have to find other sources of blood?

How does codominance differ from incomplete dominance?

Tracing a paternal line of inheritance usually involves

You have a patient who needs a lot of blood.The patient is blood type A−.How many different types of blood can this patient accept?

The SRY gene on the Y chromosome is responsible for

A person with B blood type marries someone with blood type A.They have children.What is the LARGEST percentage of their offspring that could have blood type O,if both parents are heterozygotes? (Draw a Punnett square to help you figure this out.)

Explain why the incidence of aneuploidy increases as a woman's age increases.

A karyotype from a person with Down syndrome would show

In O− blood,the "negative" means that there are no _____ surface markers.

What are X-linked traits?

Why is amniocentesis usually performed?

Amniocentesis is

Zygotes with _______ usually cannot survive until birth.

Which of the following human chromosomes is passed on intact from father to son?

XXX,XO,XYY,and XXY conditions are the result of

What is the significance of the X and Y chromosome in terms of sexual identity?

All the male relatives of a color-blind man are also color blind.This man likely received the allele for color blindness from

All of the following are true of color blindness,EXCEPT

The rate of aneuploidy _____ as the age of the mother increases.

The Process of Science Java Report

Chemistry and Molecules of Life Mission to Mars

Cell Function and Structure Wonder Drug

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

DNA Structure and Replication Biologically Unique

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Life on Earth Qa: Evolution

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

B: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

B: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

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