Question 1

Which of the following statements is true of Mendel's laws?

Accepted Answer

A)  They are less accurate than Punnett square results.
B)  They are useful only in unusual situations.
C)  They correctly explain how genes are inherited.
D)  They correctly predict the phenotype of an organism.

Question 2

MATCHING
Match each mode of inheritance to a statement listed below.
-A human's ability to roll their tongue is dependent on a single gene that is either dominant or recessive.

Accepted Answer

A)  incomplete dominance
B)  epistasis
C)  polygenic
D)  pleiotropy
E)  codominanceF) Mendelian trait

Question 3

A chestnut-colored horse is mated with a cremello (cream-colored) horse.Over a 10-year period,all of their offspring are palominos.This pattern of inheritance is best explained by

Accepted Answer

A)  complete dominance.
B)  incomplete dominance.
C)  multiple gene effects.
D)  environmental effects on genes.

Question 4

According to Mendel's law of ________,when gametes are formed,the separation of alleles for one gene is unrelated to the separation of alleles for other genes.

Accepted Answer

independen...

Question 5

Which of the following choices represents the genotype of an individual diploid organism?

Accepted Answer

A)  BbCCdd
B)  BCd
C)  bcd
D)  BbCd

Question 6

Is it possible for two organisms with the same genotype to have different phenotypes? Explain your answer.

Accepted Answer

Yes.The expression of the geno...

Question 7

A dihybrid cross of fruit flies is used to examine inheritance patterns for eye color (black or white)and head shape (round or elongated).This cross produces 10,000 offspring,and the ratio is 1 (black eyes,round head): 1 (black eyes,elongated head): 1 (white eyes,round head): 1 (white eyes,elongated head).Is this what you would expect from a dihybrid cross? Explain your answer.

Accepted Answer

No.The pattern predicted by the law of i...

Question 8

Which of the following statements is NOT true?

Accepted Answer

A)  Two organisms with the same phenotype may have different genotypes.
B)  Two organisms with the same genotype are homozygous.
C)  A heterozygous organism may have the same phenotype as a homozygous organism.
D)  A heterozygous organism has fewer alleles for a given gene than a homozygous organism.

Question 9

Which of the following is the mechanism described by Mendel that results in a new combination of alleles in a pea plant seed?

Accepted Answer

A)  the mutation of multiple alleles during mitosis
B)  the mutation of multiple alleles during meiosis
C)  the separation of alleles for two different genes during meiosis
D)  the separation of alleles for a single gene during meiosis

Question 10

If Gregor Mendel had studied a polygenic trait that did not follow the straightforward single-gene,single-phenotype pattern,do you believe he would have been able to describe how genes are passed from parents to offspring? Justify your answer.

Accepted Answer

No.Studying traits with dominant and rec...

Question 11

A pea plant that is heterozygous for the flower color gene makes gametes.What is the probability that a specific gamete contains the recessive allele for flower color?

Accepted Answer

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

Question 12

Which of the following does NOT represent a phenotype?

Accepted Answer

A)  a person's susceptibility to Addison's disease
B)  the height of a draft horse
C)  the alleles in a mouse that control hair color
D)  the extent to which an individual is shy

Question 13

Which of the following did Gregor Mendel notice in garden peas?

Accepted Answer

A)  Some plants always produced offspring with flowers that were the same color as the parent plant's flowers.
B)  The first generation from a genetic cross of true-breeding plants always produced offspring that were intermediate in their phenotype and did not look like either parent.
C)  Garden peas always produce a variety of phenotypes in their offspring,which result from frequent mutations.
D)  Any individual pea plant carries at least three different alleles for flower color.

Question 14

The pleiotropy that occurs when a single gene controls multiple skeletal traits in dogs,such as leg bone length and skull size,may be explained because

Accepted Answer

A)  dogs share a common ancestor.
B)  the skeletal traits are related in the overall function of the dog.
C)  dogs have lived with humans for thousands of years.
D)  the effect of this gene depends on the environment.

Question 15

The figure shown indicates two Labrador retrievers that are both homozygous recessive for fur color.Why is one dog brown and the other is yellow?

Accepted Answer

A)  This is an example of pleiotropy.
B)  This is an example of codominance.
C)  This is an example of epistasis.
D)  This is an example of incomplete dominance.

Question 16

MATCHING
Match each mode of inheritance to a statement listed below.
-The color of wheat kernels is controlled by the interaction of two separate genes with one gene affecting the expression of the other gene.

Accepted Answer

A)  incomplete dominance
B)  epistasis
C)  polygenic
D)  pleiotropy
E)  codominanceF) Mendelian trait

Question 17

MATCHING
Match each mode of inheritance to a statement listed below.
-The frizzle gene in chickens affects many traits,including feather type,metabolic rate,blood flow rates,and digestion.

Accepted Answer

A)  incomplete dominance
B)  epistasis
C)  polygenic
D)  pleiotropy
E)  codominanceF) Mendelian trait

Question 18

An allele is

Accepted Answer

A)  a version of a gene.
B)  a trait that can be affected by the external environment.
C)  always codominant to its counterpart in another chromosome.
D)  the result of a change in phenotype.

Question 19

Which of the following is true for mutations?

Accepted Answer

A)  Mutations will affect the genotype without affecting the phenotype.
B)  Mutations will affect the phenotype without affecting the genotype.
C)  Mutations will affect the genotype,which may affect the phenotype.
D)  Mutations will affect the phenotype,which may affect the genotype.

Question 20

Two organisms that are true-breeding for a certain genetic characteristic are mated and their offspring analyzed.Which of the following statements about this situation is true?

Accepted Answer

A)  Both parents are heterozygotes.
B)  The offspring are either 100 percent homozygotes or 100 percent heterozygotes.
C)  The offspring represent the P generation.
D)  The gametes produced by the offspring will carry two alleles for this gene.

Exam 6: Patterns of Inheritance

A pea plant that is heterozygous for the flower color gene makes gametes.What is the probability that a specific gamete contains the recessive allele for flower color?

Correct Answer
verified

The pleiotropy that occurs when a single gene controls multiple skeletal traits in dogs,such as leg bone length and skull size,may be explained because

Correct Answer
verified

According to Mendel's law of ________,when gametes are formed,the separation of alleles for one gene is unrelated to the separation of alleles for other genes.

Correct Answer
verified
independen...
View Answer

Which of the following statements is true of Mendel's laws?

Correct Answer
verified

MATCHING Match each mode of inheritance to a statement listed below. -The frizzle gene in chickens affects many traits,including feather type,metabolic rate,blood flow rates,and digestion.

Correct Answer
verified

If Gregor Mendel had studied a polygenic trait that did not follow the straightforward single-gene,single-phenotype pattern,do you believe he would have been able to describe how genes are passed from parents to offspring? Justify your answer.

Correct Answer
verified
No.Studying traits with dominant and rec...
View Answer

A chestnut-colored horse is mated with a cremello (cream-colored) horse.Over a 10-year period,all of their offspring are palominos.This pattern of inheritance is best explained by

Correct Answer
verified

Which of the following does NOT represent a phenotype?

Correct Answer
verified

An allele is

Correct Answer
verified

MATCHING Match each mode of inheritance to a statement listed below. -The color of wheat kernels is controlled by the interaction of two separate genes with one gene affecting the expression of the other gene.

Correct Answer
verified

Which of the following choices represents the genotype of an individual diploid organism?

Correct Answer
verified

Which of the following did Gregor Mendel notice in garden peas?

Correct Answer
verified

Correct Answer
verified
No.The pattern predicted by the law of i...
View Answer

Is it possible for two organisms with the same genotype to have different phenotypes? Explain your answer.

Correct Answer
verified
Yes.The expression of the geno...
View Answer

Two organisms that are true-breeding for a certain genetic characteristic are mated and their offspring analyzed.Which of the following statements about this situation is true?

Correct Answer
verified

Which of the following is true for mutations?

Correct Answer
verified

Which of the following statements is NOT true?

Correct Answer
verified

MATCHING Match each mode of inheritance to a statement listed below. -A human's ability to roll their tongue is dependent on a single gene that is either dominant or recessive.

Correct Answer
verified

Which of the following is the mechanism described by Mendel that results in a new combination of alleles in a pea plant seed?

Correct Answer
verified

The figure shown indicates two Labrador retrievers that are both homozygous recessive for fur color.Why is one dog brown and the other is yellow?

Correct Answer
verified

Exam 6: Patterns of Inheritance

A pea plant that is heterozygous for the flower color gene makes gametes.What is the probability that a specific gamete contains the recessive allele for flower color?

Correct AnswerverifiedShow Answer

The pleiotropy that occurs when a single gene controls multiple skeletal traits in dogs,such as leg bone length and skull size,may be explained because

Correct AnswerverifiedShow Answer

According to Mendel's law of ________,when gametes are formed,the separation of alleles for one gene is unrelated to the separation of alleles for other genes.

Correct Answerverifiedindependen...View AnswerShow Answer

Which of the following statements is true of Mendel's laws?

Correct AnswerverifiedShow Answer

MATCHING Match each mode of inheritance to a statement listed below. -The frizzle gene in chickens affects many traits,including feather type,metabolic rate,blood flow rates,and digestion.

Correct AnswerverifiedShow Answer

If Gregor Mendel had studied a polygenic trait that did not follow the straightforward single-gene,single-phenotype pattern,do you believe he would have been able to describe how genes are passed from parents to offspring? Justify your answer.

Correct AnswerverifiedNo.Studying traits with dominant and rec...View AnswerShow Answer

A chestnut-colored horse is mated with a cremello (cream-colored) horse.Over a 10-year period,all of their offspring are palominos.This pattern of inheritance is best explained by

Correct AnswerverifiedShow Answer

Which of the following does NOT represent a phenotype?

Correct AnswerverifiedShow Answer

An allele is

Correct AnswerverifiedShow Answer

MATCHING Match each mode of inheritance to a statement listed below. -The color of wheat kernels is controlled by the interaction of two separate genes with one gene affecting the expression of the other gene.

Correct AnswerverifiedShow Answer

Which of the following choices represents the genotype of an individual diploid organism?

Correct AnswerverifiedShow Answer

Which of the following did Gregor Mendel notice in garden peas?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedNo.The pattern predicted by the law of i...View AnswerShow Answer

Is it possible for two organisms with the same genotype to have different phenotypes? Explain your answer.

Correct AnswerverifiedYes.The expression of the geno...View AnswerShow Answer

Two organisms that are true-breeding for a certain genetic characteristic are mated and their offspring analyzed.Which of the following statements about this situation is true?

Correct AnswerverifiedShow Answer

Which of the following is true for mutations?

Correct AnswerverifiedShow Answer

Which of the following statements is NOT true?

Correct AnswerverifiedShow Answer

MATCHING Match each mode of inheritance to a statement listed below. -A human's ability to roll their tongue is dependent on a single gene that is either dominant or recessive.

Correct AnswerverifiedShow Answer

Which of the following is the mechanism described by Mendel that results in a new combination of alleles in a pea plant seed?

Correct AnswerverifiedShow Answer

The figure shown indicates two Labrador retrievers that are both homozygous recessive for fur color.Why is one dog brown and the other is yellow?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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independen...
View Answer

Correct Answer
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Correct Answer
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No.Studying traits with dominant and rec...
View Answer

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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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No.The pattern predicted by the law of i...
View Answer

Correct Answer
verified
Yes.The expression of the geno...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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