Question 1

One of the surprising findings from the Human Genome Project was that _____.

Accepted Answer

A)   humans have far more genes than had previously been thought
B)   humans are extremely genetically different from each other
C)   humans have far fewer genes than had previously been thought
D)   it is easy to predict exactly how genes from one parent will interact with the genes from the otherE) C) and D)
F) A) and B)

Question 2

On the 23rd pair of chromosomes, _____ have two X chromosomes.

Accepted Answer

A)   females
B)   embryos
C)   sperm
D)   malesE) A) and B)
F) None of the above

Question 3

The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent differs from the code on the same gene from the other parent, the gene pair is _____.

Accepted Answer

The answer of The first 22 chromosomes contain hundreds of...

Question 4

When a person inherits a recessive gene that is not expressed in the phenotype, that person is a carrier of the gene.

Accepted Answer

A) True 
 B)False

Question 5

Twins who are the same sex and are similar in appearance and traits are _____.

Accepted Answer

A)   monozygotic twins
B)   dizygotic twins
C)   monozygotic or dizygotic twins
D)   not possible to determine if they are monozygotic or dizygotic twinsE) A) and D)
F) None of the above

Question 6

A couple has been trying to conceive a child for 12 months. They decide to consult with a doctor, who makes the general recommendation that they consider using _____ to try to conceive a child.

Accepted Answer

A)   in vitro fertilization (IVF) 
B)   assisted reproductive technology (ART) 
C)   intra-cytoplasmic sperm injection (ICSI) 
D)   multifactorialE) A) and B)
F) B) and D)

Question 7

Consultation and testing by trained experts that enable individuals to learn about their genetic heritage, including harmful conditions that they might pass along to any children they may conceive, is referred to as _____.

Accepted Answer

A)   couples counseling
B)   marriage counseling
C)   genetic counseling
D)   individual counselingE) C) and D)
F) A) and B)

Question 8

A statistic that indicates the percentage of the variation of a particular trait can be traced to genes is _____.

Accepted Answer

A)   heritability
B)   genome
C)   dominance
D)   recessionE) A) and C)
F) B) and C)

Question 9

Knowing that nature and nurture affect every human trait and disorder means that _____.

Accepted Answer

A)   no one should be blamed or punished for inherited problems
B)   prevention efforts will not decrease the occurrence of the trait or disorder
C)   ignoring the nature-nurture influence on human traits and disorders can be beneficial
D)   nurture can always override the potential influence of natureE) All of the above
F) None of the above

Question 10

Genes with various repeats or deletions of base pairs are referred to as _____.

Accepted Answer

copy numbe...

Question 11

Genes are located on chromosomes.

Accepted Answer

A) True 
 B)False

Question 12

Timur and Juan are playing basketball. Timur shoots the ball and Juan blocks the shot. Timur says, "Wow, I didn't realize how tall you were until you did that!" Timur's comment refers to Juan's _____.

Accepted Answer

A)   phenotype
B)   allele
C)   genotype
D)   gameteE) B) and C)
F) A) and B)

Question 13

Justin and Jacob are identical twins. They are the result of _____.

Accepted Answer

A)   one ovum fertilized by one sperm that split into two zygotes
B)   two separate ova that were fertilized by two different sperm
C)   one ovum that was fertilized by two sperm
D)   two ova that were fertilized by one spermE) A) and B)
F) A) and C)

Question 14

A fatal central nervous system disorder caused by a copy number variation in which more than 35 repetitions of a particular set of three base pairs are present is _____.

Accepted Answer

A)   Down syndrome
B)   nearsightedness
C)   fragile X syndrome
D)   Huntington's diseaseE) B) and D)
F) A) and B)

Question 15

Human genome research cannot pinpoint the exact number of genes because _____.

Accepted Answer

A)   they are microscopic
B)   they keep changing
C)   Pax6 genes vary
D)   it is hard to figure out where one gene starts and another stopsE) B) and C)
F) A) and B)

Question 16

When the effects of genes add up to influence the phenotype, they are called _____ genes.

Accepted Answer

The answer of When the effects of genes add up...

Question 17

Fraternal twins are also called _____ twins.

Accepted Answer

The answer of Fraternal twins are also called _____ twins....

Question 18

_____ is when genes have different effects depending on whether they come from the mother or the father.

Accepted Answer

A)   Additive pattern
B)   Dominant-recessive pattern
C)   Parental imprinting
D)   Copy number variationE) A) and C)
F) B) and D)

Question 19

The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent is exactly like the code on the same gene from the other parent, the gene pair is _____.

Accepted Answer

A)   homozygous
B)   heterozygous
C)   monozygotic
D)   dizygoticE) All of the above
F) A) and B)

Question 20

Oliver has inherited genes that put him at risk for developing diabetes, but he never develops it because he always had a healthy diet and plenty of exercise. This example demonstrates that human characteristics such as diabetes are _____.

Accepted Answer

A)   polygenic
B)   nonadditive
C)   multifactorial
D)   epigeneticE) A) and D)
F) None of the above

Exam 3: The New Genetics

A couple has been trying to conceive a child for 12 months. They decide to consult with a doctor, who makes the general recommendation that they consider using _____ to try to conceive a child.

Correct AnswerverifiedShow Answer

Fraternal twins are also called _____ twins.

Correct AnswerverifiedShow Answer

Justin and Jacob are identical twins. They are the result of _____.

Correct AnswerverifiedShow Answer

On the 23rd pair of chromosomes, _____ have two X chromosomes.

Correct AnswerverifiedShow Answer

One of the surprising findings from the Human Genome Project was that _____.

Correct AnswerverifiedShow Answer

When the effects of genes add up to influence the phenotype, they are called _____ genes.

Correct AnswerverifiedShow Answer

Human genome research cannot pinpoint the exact number of genes because _____.

Correct AnswerverifiedShow Answer

The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent is exactly like the code on the same gene from the other parent, the gene pair is _____.

Correct AnswerverifiedShow Answer

Oliver has inherited genes that put him at risk for developing diabetes, but he never develops it because he always had a healthy diet and plenty of exercise. This example demonstrates that human characteristics such as diabetes are _____.

Correct AnswerverifiedShow Answer

The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent differs from the code on the same gene from the other parent, the gene pair is _____.

Correct AnswerverifiedShow Answer

Knowing that nature and nurture affect every human trait and disorder means that _____.

Correct AnswerverifiedShow Answer

A statistic that indicates the percentage of the variation of a particular trait can be traced to genes is _____.

Correct AnswerverifiedShow Answer

Consultation and testing by trained experts that enable individuals to learn about their genetic heritage, including harmful conditions that they might pass along to any children they may conceive, is referred to as _____.

Correct AnswerverifiedShow Answer

Timur and Juan are playing basketball. Timur shoots the ball and Juan blocks the shot. Timur says, "Wow, I didn't realize how tall you were until you did that!" Timur's comment refers to Juan's _____.

Correct AnswerverifiedShow Answer

_____ is when genes have different effects depending on whether they come from the mother or the father.

Correct AnswerverifiedShow Answer

When a person inherits a recessive gene that is not expressed in the phenotype, that person is a carrier of the gene.

Correct AnswerverifiedShow Answer

Genes are located on chromosomes.

Correct AnswerverifiedShow Answer

A fatal central nervous system disorder caused by a copy number variation in which more than 35 repetitions of a particular set of three base pairs are present is _____.

Correct AnswerverifiedShow Answer

Twins who are the same sex and are similar in appearance and traits are _____.

Correct AnswerverifiedShow Answer

Genes with various repeats or deletions of base pairs are referred to as _____.

Correct Answerverifiedcopy numbe...View AnswerShow Answer

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