Question 1

Aneuploid human embryos are least likely to survive except those involving:

Accepted Answer

A) chromosome 1, 2, 3, X, Y. 
B) chromosome 1, 2, 3, 4, 5. 
C) chromosome 13, 18, 21, X, Y. 
D) chromosome 6, 7, 8, 9, 10. 
E) chromosome 11, 12, 14, 15. 
A) chromosome 1, 2, 3, X, Y. 
B) chromosome 1, 2, 3, 4, 5. 
C) chromosome 13, 18, 21, X, Y. 
D) chromosome 6, 7, 8, 9, 10. 
E) chromosome 11, 12, 14, 15.

Question 2

Explain what causes aneuploidy.

Accepted Answer

Nondisjunction is failure of homologous

Question 3

Match between columns
                        Premises: This produces cri-du-chat syndrome.
This has been involved in producing gene families and has been vital to evolution.
This event may occur during meiosis I or meiosis II.
Only 1 percent of human embryos with this condition survive.
Non-homologous chromosomes have exchanged parts.

Accepted Answer

The Answer of aneuploidy and translocation and nondisjunction and deletion is...

Question 4

The state of having more than two sets of chromosomes is called:

Accepted Answer

A) autosomal. 
B) dominant. 
C) polyploidy. 
D) aneuploidy. 
E) nondisjunction. 
A) autosomal. 
B) dominant. 
C) polyploidy. 
D) aneuploidy. 
E) nondisjunction.

Question 5

Hemophelia is an X-linked recessive disorder.A mother without the allele and a father with the allele have a daughter.The daughter then marries a man with hemophilia.What is the genotype of the daughter? What is the probability that the daughter's children will develop the disease?

Accepted Answer

A Punnett square will show tha

Question 6

Red-green color blindness is an X-linked recessive trait in humans.A color-blind woman and a man with normal vision have a son.What is the probability that the son is color blind?

Accepted Answer

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

Question 7

Duchenne muscular dystrophy is a recessive disorder resulting in a wasting away of the muscles.How would you design a study to determine if the disorder is X-linked or autosomal? How would you be able to determine if it is X-linked or autosomal?

Accepted Answer

The study would analyze the inheritance

Question 8

What is one difference between polyploidy and aneuploidy?

Accepted Answer

A) Polyploidy is extra sets of chromosomes; aneuploidy occurs when there are either more or fewer chromosomes than normally exist in its species full set. 
B) Humans can be viable as polyploids but not as aneuploids. 
C) Polyploidy is extra sex chromosomes; aneuploidy is extra autosomes. 
D) Polyploidy is one extra chromosome; aneuploidy is one missing chromosome. 
E) Polyploidy causes diseases and disorders in humans; aneuploidy does not. 
A) Polyploidy is extra sets of chromosomes; aneuploidy occurs when there are either more or fewer chromosomes than normally exist in its species full set. 
B) Humans can be viable as polyploids but not as aneuploids. 
C) Polyploidy is extra sex chromosomes; aneuploidy is extra autosomes. 
D) Polyploidy is one extra chromosome; aneuploidy is one missing chromosome. 
E) Polyploidy causes diseases and disorders in humans; aneuploidy does not.

Question 9

Which of the following is an autosomal recessive disorder?

Accepted Answer

A) hemophilia 
B) Huntington disease 
C) Down syndrome 
D) sickle-cell anemia 
E) Turner syndrome 
A) hemophilia 
B) Huntington disease 
C) Down syndrome 
D) sickle-cell anemia 
E) Turner syndrome

Question 10

What do hemophilia,Duchenne muscular dystrophy,and red-green color blindness have in common?

Accepted Answer

A) They are X-linked. 
B) They are more common in females than in males. 
C) They are caused by inheritance of an extra sex chromosome. 
D) They are caused by inheritance of an extra autosome. 
E) The gene that causes them is on the Y chromosome. 
A) They are X-linked. 
B) They are more common in females than in males. 
C) They are caused by inheritance of an extra sex chromosome. 
D) They are caused by inheritance of an extra autosome. 
E) The gene that causes them is on the Y chromosome.

Question 11

What single attribute determines that a human fetus is male?

Accepted Answer

A) the absence of a second X chromosome 
B) the absence of a Y chromosome 
C) the presence of a Y chromosome 
D) the presence of two X chromosomes 
A) the absence of a second X chromosome 
B) the absence of a Y chromosome 
C) the presence of a Y chromosome 
D) the presence of two X chromosomes

Question 12

If a disease is caused by a dominant allele,it means that a person with the disease:

Accepted Answer

A) will always pass it on to all their children. 
B) will pass it on to one-fourth of their children. 
C) must be homozygous dominant for the allele. 
D) must be heterozygous for the allele. 
E) could be either homozygous or heterozygous for the allele. 
A) will always pass it on to all their children. 
B) will pass it on to one-fourth of their children. 
C) must be homozygous dominant for the allele. 
D) must be heterozygous for the allele. 
E) could be either homozygous or heterozygous for the allele.

Question 13

Genes not found on the sex chromosomes will be found on:

Accepted Answer

A) X chromosomes. 
B) Y chromosomes. 
C) autosomes. 
D) centrosomes. 
A) X chromosomes. 
B) Y chromosomes. 
C) autosomes. 
D) centrosomes.

Question 14

If a daughter expresses an X-linked recessive gene,she probably inherited the trait from:

Accepted Answer

A) her mother. 
B) her father. 
C) both parents. 
D) neither parent. 
E) her grandmother. 
A) her mother. 
B) her father. 
C) both parents. 
D) neither parent. 
E) her grandmother.

Question 15

Hemophilia,Duchenne muscular dystrophy,and color blindness are examples of ________ disorders.

Accepted Answer

The answer of Hemophilia,Duchenne muscular dystrophy,and color blindness are examples...

Question 16

A karyotype reveals that a woman is carrying a fetus that has 47 chromosomes.The test reveals that the genotype of the fetus is XXY.Which of the following statements is correct?

Accepted Answer

A) The fetus has Down syndrome, and most likely a nondisjunction event occurred in the mother during egg formation. 
B) The fetus has Turner syndrome, and most likely a nondisjunction event occurred in the mother during egg formation. 
C) The fetus has Klinefelter syndrome. 
D) The fetus has an autosomal disorder. 
A) The fetus has Down syndrome, and most likely a nondisjunction event occurred in the mother during egg formation. 
B) The fetus has Turner syndrome, and most likely a nondisjunction event occurred in the mother during egg formation. 
C) The fetus has Klinefelter syndrome. 
D) The fetus has an autosomal disorder.

Question 17

Polyploidy is better tolerated in plants than in animals.

Accepted Answer

A) True 
 B)False

Question 18

A woman who does not carry the color-blindness allele has children with a man who is color blind.What proportion of their children will be color blind?

Accepted Answer

A) all 
B) 1/4 
C) 1/2 
D) 3/4 
E) none 
A) all 
B) 1/4 
C) 1/2 
D) 3/4 
E) none

Question 19

Women do not express X-linked recessive characters.

Accepted Answer

A) True 
 B)False

Question 20

The human genome has how many pairs of autosomal chromosomes?

Accepted Answer

A) 46 pairs 
B) 44 pairs 
C) 23 pairs 
D) 22 pairs 
E) 24 pairs 
A) 46 pairs 
B) 44 pairs 
C) 23 pairs 
D) 22 pairs 
E) 24 pairs

Exam 12: Units of Heredity: Chromosomes and Inheritance

Aneuploid human embryos are least likely to survive except those involving:

Explain what causes aneuploidy.

The state of having more than two sets of chromosomes is called:

Hemophelia is an X-linked recessive disorder.A mother without the allele and a father with the allele have a daughter.The daughter then marries a man with hemophilia.What is the genotype of the daughter? What is the probability that the daughter's children will develop the disease?

Red-green color blindness is an X-linked recessive trait in humans.A color-blind woman and a man with normal vision have a son.What is the probability that the son is color blind?

Duchenne muscular dystrophy is a recessive disorder resulting in a wasting away of the muscles.How would you design a study to determine if the disorder is X-linked or autosomal? How would you be able to determine if it is X-linked or autosomal?

What is one difference between polyploidy and aneuploidy?

Which of the following is an autosomal recessive disorder?

What do hemophilia,Duchenne muscular dystrophy,and red-green color blindness have in common?

What single attribute determines that a human fetus is male?

If a disease is caused by a dominant allele,it means that a person with the disease:

Genes not found on the sex chromosomes will be found on:

If a daughter expresses an X-linked recessive gene,she probably inherited the trait from:

Hemophilia,Duchenne muscular dystrophy,and color blindness are examples of ________ disorders.

A karyotype reveals that a woman is carrying a fetus that has 47 chromosomes.The test reveals that the genotype of the fetus is XXY.Which of the following statements is correct?

Polyploidy is better tolerated in plants than in animals.

A woman who does not carry the color-blindness allele has children with a man who is color blind.What proportion of their children will be color blind?

Women do not express X-linked recessive characters.

The human genome has how many pairs of autosomal chromosomes?

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

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