Question 1

Which of the following best describes blood type O negative?

Accepted Answer

A)  It is the universal recipient. 
B)  It is the universal donor. 
C)  It is the least common blood group. 
D)  It is the most common blood group. 
E)  It has the most surface markers. 
A)  It is the universal recipient. 
B)  It is the universal donor. 
C)  It is the least common blood group. 
D)  It is the most common blood group. 
E)  It has the most surface markers.

Question 2

A woman with blood type A and a man with blood type O have three children.The children's blood types are A,O,and AB.Which of these cannot be the man's biological child?

Accepted Answer

The child that is AB cannot be

Question 3

A person who has a heterozygous genotype for a trait

Accepted Answer

A)  will express both phenotypes of the gene if the trait exhibits codominance. 
B)  will only express the dominant phenotype, in all circumstances. 
C)  will express an intermediate phenotype if the trait exhibits incomplete dominance. 
D)  A and C 
E)  All of the above.. 
A)  will express both phenotypes of the gene if the trait exhibits codominance. 
B)  will only express the dominant phenotype, in all circumstances. 
C)  will express an intermediate phenotype if the trait exhibits incomplete dominance. 
D)  A and C 
E)  All of the above..

Question 4

Why is it a good idea to use STRs on Ychromosomes for ancestry instead of STRs on X chromosomes?

Accepted Answer

A)  The Y chromosome is passed on to every generation no matter what. 
B)  The X chromosome is passed on to every generation no matter what. 
C)  The X chromosome undergoes crossing over; the Y does not. 
D)  The Y chromosome undergoes crossing over; the X does not. 
E)  There are more available STRs on the Y chromosome than on the X chromosome 
A)  The Y chromosome is passed on to every generation no matter what. 
B)  The X chromosome is passed on to every generation no matter what. 
C)  The X chromosome undergoes crossing over; the Y does not. 
D)  The Y chromosome undergoes crossing over; the X does not. 
E)  There are more available STRs on the Y chromosome than on the X chromosome

Question 5

The sex chromosomes found in a typical male are

Accepted Answer

A)  XX. 
B)  XY. 
C)  YY. 
D)  Y. 
E)  YXY. 
A)  XX. 
B)  XY. 
C)  YY. 
D)  Y. 
E)  YXY.

Question 6

You have a white flower and you know it is homozygous for the flower color gene,and you have a red flower that is also homozygous for flower color.When you cross these,100% of the offspring are pink.Explain this,using a Punnett square.What kind of inheritance pattern is being exhibited?

Accepted Answer

This is an example of incomple

Question 7

Nondisjunction or failure of chromosomes to separate can occur

Accepted Answer

A)  during mitosis of sex cells. 
B)  during meiosis I or II of sperm or egg cells. 
C)  during meiosis I only of sperm or egg cells. 
D)  during meiosis II of sperm or egg cells. 
E)  during meiosis I or II in egg cells only. 
A)  during mitosis of sex cells. 
B)  during meiosis I or II of sperm or egg cells. 
C)  during meiosis I only of sperm or egg cells. 
D)  during meiosis II of sperm or egg cells. 
E)  during meiosis I or II in egg cells only.

Question 8

People with blood type O− can donate blood to people with which blood type?

Accepted Answer

A)  A+ 
B)  O− 
C)  AB− 
D)  AB+ 
E)  All of the above. 
A)  A+ 
B)  O− 
C)  AB− 
D)  AB+ 
E)  All of the above.

Question 9

Skin tone is based on the amount of melanin present in the human skin.The huge range of skin tones is related to the fact that at least three genes are involved in determining the amount of melanin you inherit.During our lives,our bodies are exposed to sources of ultraviolet radiation,which leads to DNA damage in skin cells.One response to this damage is the production of extra melanin,leading to tanning of the skin.Based on this knowledge,is the amount of melanin in skin cells polygenic,multifactorial,or both?

Accepted Answer

It is both.It is polygenic because more

Question 10

What are some of the reasons a couple may decide to have amniocentesis performed?

Accepted Answer

The mother or father may be older than 3

Question 11

A study was conducted among the Yaqui people in Mexico.The Yaqui who had migrated to the valley adopted Westernized agriculture,including use of pesticides and herbicides.Those who remained in the hills maintained a lower-impact form of agriculture.When the children of these two groups were examined,those in the valley had lower memory and hand-eye coordination and slower mental development than those in the hills.Yet these children were from closely related families,many of them being first cousins.Explain how they could be so different.What type(s)of inheritance might be involved?

Accepted Answer

The environment has many impac

Question 12

How can liquid from the amniotic sac tell you anything about the DNA of the developing child?

Accepted Answer

Amniotic f

Question 13

Can a man with hemophilia pass hemophilia on to his sons? Why or why not?

Accepted Answer

A man with hemophilia cannot p

Question 14

A patient with an AB blood type can receive a transfusion from a donor with blood type _______ only.

Accepted Answer

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

Question 15

An example of a codominant trait is

Accepted Answer

A)  Rh factor. 
B)  wavy hair. 
C)  type AB blood. 
D)  height. 
E)  color blindness. 
A)  Rh factor. 
B)  wavy hair. 
C)  type AB blood. 
D)  height. 
E)  color blindness.

Question 16

Why is matching blood type important?

Accepted Answer

Blood type is based on markers on the su

Question 17

What is the main difference in behavior between the X and Y chromosome during meiosis?

Accepted Answer

A)  The Y chromosome aligns with its homologous chromosome; the X does not. 
B)  The X chromosome undergoes crossing over; the Y does not. 
C)  The Y chromosome undergoes crossing over; the X does not. 
D)  During crossing over the X chromosome donates segments to the Y chromosome. 
E)  During crossing over the Y chromosome donates segments to the X chromosome. 
A)  The Y chromosome aligns with its homologous chromosome; the X does not. 
B)  The X chromosome undergoes crossing over; the Y does not. 
C)  The Y chromosome undergoes crossing over; the X does not. 
D)  During crossing over the X chromosome donates segments to the Y chromosome. 
E)  During crossing over the Y chromosome donates segments to the X chromosome.

Question 18

If red flower color (R)is incompletely dominant to white flower color (r),then what is the genotype of pink flowers?

Accepted Answer

A)  RR 
B)  rr 
C)  Rr 
D)  The genotype depends on the genotype of a modifier gene. 
E)  The genotype cannot be determined. 
A)  RR 
B)  rr 
C)  Rr 
D)  The genotype depends on the genotype of a modifier gene. 
E)  The genotype cannot be determined.

Question 19

A person with the AB blood type recognizes which of the following blood types as foreign?

Accepted Answer

A)  only A 
B)  only B 
C)  A and B 
D)  O 
E)  They do not recognize any blood types as foreign. 
A)  only A 
B)  only B 
C)  A and B 
D)  O 
E)  They do not recognize any blood types as foreign.

Question 20

A man with curly hair has three children with a woman who has straight hair.What type of hair will their children have?

Accepted Answer

A)  100% will have straight hair 
B)  25% will have wavy hair 
C)  100% will have curly hair 
D)  50% will have curly hair 
E)  100% will have wavy hair 
A)  100% will have straight hair 
B)  25% will have wavy hair 
C)  100% will have curly hair 
D)  50% will have curly hair 
E)  100% will have wavy hair

Exam 12: Complex Inheritance Qa: Genetics

Which of the following best describes blood type O negative?

A woman with blood type A and a man with blood type O have three children.The children's blood types are A,O,and AB.Which of these cannot be the man's biological child?

A person who has a heterozygous genotype for a trait

Why is it a good idea to use STRs on Ychromosomes for ancestry instead of STRs on X chromosomes?

The sex chromosomes found in a typical male are

You have a white flower and you know it is homozygous for the flower color gene,and you have a red flower that is also homozygous for flower color.When you cross these,100% of the offspring are pink.Explain this,using a Punnett square.What kind of inheritance pattern is being exhibited?

Nondisjunction or failure of chromosomes to separate can occur

People with blood type O− can donate blood to people with which blood type?

What are some of the reasons a couple may decide to have amniocentesis performed?

How can liquid from the amniotic sac tell you anything about the DNA of the developing child?

Can a man with hemophilia pass hemophilia on to his sons? Why or why not?

A patient with an AB blood type can receive a transfusion from a donor with blood type _______ only.

An example of a codominant trait is

Why is matching blood type important?

What is the main difference in behavior between the X and Y chromosome during meiosis?

If red flower color (R)is incompletely dominant to white flower color (r),then what is the genotype of pink flowers?

A person with the AB blood type recognizes which of the following blood types as foreign?

A man with curly hair has three children with a woman who has straight hair.What type of hair will their children have?

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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