Question 1

Phenylketonuria is caused by dominant genes that fail to produce the enzyme phenylalanine hydroxylase.

Accepted Answer

A) True 
 B)False

Question 2

A Punnett square or a pedigree can only predict the probability or possibility of passing on a trait to an offspring.

Accepted Answer

A) True 
 B)False  True

Question 3

For a karyotype to be an effective predictor of genetic problems, it must be able to go back several generations.

Accepted Answer

A) True 
 B)False

Question 4

The human genome contains about _____ genes.

Accepted Answer

A)  200,000 to 300,000
B)  150,000 to 250,000
C)  75,000 to 100,000
D)  20,000 to 25,000

Question 5

Discuss genetic counseling. Include in your discussion an explanation of a pedigree, the Punnett square, and a karyotype.

Accepted Answer

Genetic counseling is a process that hel...

Question 6

Match each of the terms with its corresponding definition.
-Type of dominance in which two dominant versions of a trait are both expressed in the same person

Accepted Answer

A)  Recessive
B)  Codominance
C)  Monosomy
D)  Autosome
E)  KaryotypeF) Sex-linked traitG) DominantH) TrisomyI) Punnett squareJ) GenomeK) Sex chromosomeL) HeterozygousM) HomozygousN) Genetics

Question 7

What is a genetic mutation? What types of genetic mutations are there and what are some causes of mutation?

Accepted Answer

A genetic mutation is a permanent altera...

Question 8

Match each term with its corresponding definition or description.
-The entire collection of genetic material in a typical cell

Accepted Answer

A)  Proteome
B)  Ideogram
C)  Genome
D)  Genomics
E)  P-armF) ProteomicsG) Q-arm

Question 9

Thalassemia is an example of a chromosomal abnormality involving trisomy of the 23rd chromosome.

Accepted Answer

A) True 
 B)False

Question 10

A mutagen causes a change in the genetic code.

Accepted Answer

A) True 
 B)False

Question 11

The inheritance of a genetic risk factor is not sufficient to cause a disease.

Accepted Answer

A) True 
 B)False

Question 12

Genetic mutations are always harmful.

Accepted Answer

A) True 
 B)False

Question 13

Match each of the terms with its corresponding definition.
-Genes that have effects that do not appear in the offspring when they are masked by a dominant gene

Accepted Answer

A)  Recessive
B)  Codominance
C)  Monosomy
D)  Autosome
E)  KaryotypeF) Sex-linked traitG) DominantH) TrisomyI) Punnett squareJ) GenomeK) Sex chromosomeL) HeterozygousM) HomozygousN) Genetics

Question 14

When did the scientific study of genetics begin? Give a brief summary of what happened.

Accepted Answer

The scientific study of genetics is ofte...

Question 15

For an individual to have Down syndrome, one of the gametes had to have contained 24 chromosomes.

Accepted Answer

A) True 
 B)False

Question 16

A genetic disease or condition that requires a specific environmental condition for expression is called a genetic predisposition.

Accepted Answer

A) True 
 B)False  True

Question 17

Match each term with its corresponding definition or description.
-Analysis of the genome code

Accepted Answer

A)  Proteome
B)  Ideogram
C)  Genome
D)  Genomics
E)  P-armF) ProteomicsG) Q-arm

Question 18

Cleft palate can be classified as both a congenital and genetic disorder.

Accepted Answer

A) True 
 B)False

Question 19

Fortunately, individuals with Klinefelter syndrome generally are not sterile.

Accepted Answer

A) True 
 B)False  False

Question 20

People with sickle-cell trait must be heterozygous.

Accepted Answer

A) True 
 B)False

Exam 48: Genetics and Heredity

Phenylketonuria is caused by dominant genes that fail to produce the enzyme phenylalanine hydroxylase.

Correct AnswerverifiedShow Answer

A Punnett square or a pedigree can only predict the probability or possibility of passing on a trait to an offspring.

Correct AnswerverifiedTrue

For a karyotype to be an effective predictor of genetic problems, it must be able to go back several generations.

Correct AnswerverifiedShow Answer

The human genome contains about _____ genes.

Correct AnswerverifiedShow Answer

Discuss genetic counseling. Include in your discussion an explanation of a pedigree, the Punnett square, and a karyotype.

Correct AnswerAnswered by ExamLex AIGenetic counseling is a process that hel...View AnswerShow Answer

Match each of the terms with its corresponding definition. -Type of dominance in which two dominant versions of a trait are both expressed in the same person

Correct AnswerverifiedShow Answer

What is a genetic mutation? What types of genetic mutations are there and what are some causes of mutation?

Correct AnswerAnswered by ExamLex AIA genetic mutation is a permanent altera...View AnswerShow Answer

Match each term with its corresponding definition or description. -The entire collection of genetic material in a typical cell

Correct AnswerverifiedShow Answer

Thalassemia is an example of a chromosomal abnormality involving trisomy of the 23rd chromosome.

Correct AnswerverifiedShow Answer

A mutagen causes a change in the genetic code.

Correct AnswerverifiedShow Answer

The inheritance of a genetic risk factor is not sufficient to cause a disease.

Correct AnswerverifiedShow Answer

Genetic mutations are always harmful.

Correct AnswerverifiedShow Answer

Match each of the terms with its corresponding definition. -Genes that have effects that do not appear in the offspring when they are masked by a dominant gene

Correct AnswerverifiedShow Answer

When did the scientific study of genetics begin? Give a brief summary of what happened.

Correct AnswerAnswered by ExamLex AIThe scientific study of genetics is ofte...View AnswerShow Answer

For an individual to have Down syndrome, one of the gametes had to have contained 24 chromosomes.

Correct AnswerverifiedShow Answer

A genetic disease or condition that requires a specific environmental condition for expression is called a genetic predisposition.

Correct AnswerverifiedTrue

Match each term with its corresponding definition or description. -Analysis of the genome code

Correct AnswerverifiedShow Answer

Cleft palate can be classified as both a congenital and genetic disorder.

Correct AnswerverifiedShow Answer

Fortunately, individuals with Klinefelter syndrome generally are not sterile.

Correct AnswerverifiedFalse

People with sickle-cell trait must be heterozygous.

Correct AnswerverifiedShow Answer

Correct Answer
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True

Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Genetic counseling is a process that hel...
View Answer

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
A genetic mutation is a permanent altera...
View Answer

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The scientific study of genetics is ofte...
View Answer

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
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Correct Answer
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False

Correct Answer
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