Question 1

Hemophilia A is an X-linked recessive disorder.If a normal man marries a woman who is a carrier,what fraction of their daughters will have hemophilia?

Accepted Answer

A)   50%
B)   0%
C)   75%
D)   100%
E)   25%F) B) and E)
G) A) and C)

Question 2

In the ABO blood type system the alleles IA,IB,and i produce

Accepted Answer

A)   two phenotypes.
B)   one phenotype.
C)   four phenotypes.
D)   type A and type B blood types only.
E)   three phenotypes.F) D) and E)
G) C) and D)

Question 3

A gene that produces a protein that is important in more than one biochemical pathway,or other trait,is a ___ gene.

Accepted Answer

A)   recessive
B)   dominant
C)   pleiotropic
D)   codominant
E)   incomplete dominantF) B) and C)
G) A) and C)

Question 4

For the traits Mendel studied in pea plants,each trait,or phenotype,is expressed in only the dominant or recessive form,depending on the genotype.

Accepted Answer

A) True 
 B)False  True

Question 5

Recombinant chromatids have a mix of paternal and maternal alleles due to

Accepted Answer

A)   independent assortment.
B)   crossing over having happened between the linked genes.
C)   persistent linkage of genes on the chromatid.
D)   random fertilization of the gametes.
E)   point mutations and gene aberrations from replication.F) B) and C)
G) B) and D)

Question 6

Mendel observed that some genetic traits seemed to mask others in the pea plants,and used the term ___ to describe these traits.

Accepted Answer

A)   homozygous
B)   heterozygous
C)   recessive
D)   dominant
E)   homologousF) D) and E)
G) A) and B)

Question 7

If you conduct a monohybrid cross of two heterozygous Yy pea plants,what percentage of the offspring will be heterozygous?

Accepted Answer

A)   100%
B)   0%
C)   25%
D)   75%
E)   50%F) A) and B)
G) C) and E)

Question 8

If a pea plant is heterozygous for yellow seeds (Yy) ,which gametes could it produce?

Accepted Answer

A)   Yy
B)   y only
C)   YYyy
D)   Y only
E)   Y or yF) B) and D)
G) B) and C)

Question 9

Mendel kept detailed records of the genetic traits of parent plants and their offspring plants.Among observations,he found that some traits would be expressed,whenever one particular allele was present,and called this allele

Accepted Answer

A)   homologous.
B)   heterozygous.
C)   homozygous.
D)   dominant.
E)   recessive.F) B) and E)
G) A) and B)

Question 10

Linked genes,by definition,are genes that

Accepted Answer

A)   have no alleles.
B)   have more alleles than usual.
C)   are alleles that are found in different daughter cells.
D)   are found on the same chromosome.
E)   are found in the same species.F) C) and D)
G) A) and B)

Question 11

Your biology instructor has assigned you a lab exercise to test a hypothesis regarding the inheritance of stem length in pea plants.If your assignment is specifically to conduct a monohybrid cross for stem length from available genotypes growing in the lab,which of the following crosses should be performed?

Accepted Answer

A)   Tt with tt
B)   Tt with tt.
C)   Tt with TT
D)   Tt with Tt
E)   TT with TT.F) B) and E)
G) None of the above

Question 12

In humans,the condition of male pattern baldness is an example of a(n)

Accepted Answer

A)   genotype.
B)   phenotype.
C)   allele.
D)   locus.
E)   gene.F) C) and D)
G) B) and D)

Question 13

A single chromosome has

Accepted Answer

A)   a single gene with multiple alleles.
B)   a single gene with a single allele.
C)   multiple genes, each with multiple alleles.
D)   multiple genes, each with a single allele.E) B) and C)
F) C) and D)

Question 14

Bollworms raised for decades in a lab without exposure to Bt were ___ while those fed Bt were ___

Accepted Answer

A)   RR; Rr.
B)   RR; rr.
C)   Rr; RR.
D)   Rr; rr.
E)   rr; RR.F) None of the above
G) A) and C) B

Question 15

A dihybrid cross of linked genes theoretically gives a phenotypic ratio of

Accepted Answer

A)   1:1.
B)   3:1.
C)   2:1.
D)   1:1:1:1.
E)   9:3:3:1.F) A) and E)
G) A) and B) B

Question 16

This figure shows one reason among others why pea plants (Pisum sativum) are a good species for genetics studies.In reference to information given in the text,pea plants are good for genetics studies because

Accepted Answer

A)   they have many distinctly identifiable forms of genetic traits.
B)   growth of pea plants is simple and easy.
C)   All of the answer choices are correct.
D)   they can be self-fertilized for true-breeding genetic traits.
E)   they produce large numbers of offspring (the peas) .F) A) and B)
G) B) and C)

Question 17

If you cross two pea plants,one with green peas and the other with yellow peas,you find all of the offspring have yellow peas.You conclude

Accepted Answer

A)   yellow is incompletely dominant over green.
B)   yellow is dominant over green.
C)   yellow and green are co-dominant.
D)   color is random in pea plants.
E)   green is dominant over yellow.F) None of the above
G) A) and B)

Question 18

In humans,alleles for each gene are inherited from

Accepted Answer

A)   males only (dads) .
B)   females only (moms) .
C)   None of the answer choices are correct.
D)   males and females (one allele from each parent) .
E)   males and females (two alleles from each parent) .F) D) and E)
G) A) and D)

Question 19

A man with type A blood and a woman with type B blood have a child with type O blood.What are the genotypes of the man and woman?

Accepted Answer

A)   IA IA, and IB IB
B)   IA i , and IB i
C)   i i, and IB i
D)   IA i, and i i
E)   Both are i iF) A) and C)
G) A) and E)

Question 20

Linkage maps are diagrams of nitrogen base sequences on DNA.

Accepted Answer

A) True 
 B)False

Exam 10: Patterns of Inheritance

Hemophilia A is an X-linked recessive disorder.If a normal man marries a woman who is a carrier,what fraction of their daughters will have hemophilia?

Correct Answer
verified

In the ABO blood type system the alleles I^A,I^B,and i produce

Correct Answer
verified

A gene that produces a protein that is important in more than one biochemical pathway,or other trait,is a ___ gene.

Correct Answer
verified

For the traits Mendel studied in pea plants,each trait,or phenotype,is expressed in only the dominant or recessive form,depending on the genotype.

Correct Answer
verified
True

Recombinant chromatids have a mix of paternal and maternal alleles due to

Correct Answer
verified

Mendel observed that some genetic traits seemed to mask others in the pea plants,and used the term ___ to describe these traits.

Correct Answer
verified

If you conduct a monohybrid cross of two heterozygous Yy pea plants,what percentage of the offspring will be heterozygous?

Correct Answer
verified

If a pea plant is heterozygous for yellow seeds (Yy) ,which gametes could it produce?

Correct Answer
verified

Mendel kept detailed records of the genetic traits of parent plants and their offspring plants.Among observations,he found that some traits would be expressed,whenever one particular allele was present,and called this allele

Correct Answer
verified

Linked genes,by definition,are genes that

Correct Answer
verified

Correct Answer
verified

In humans,the condition of male pattern baldness is an example of a(n)

Correct Answer
verified

A single chromosome has

Correct Answer
verified

Bollworms raised for decades in a lab without exposure to Bt were _ while those fed Bt were _

Correct Answer
verified
B

A dihybrid cross of linked genes theoretically gives a phenotypic ratio of

Correct Answer
verified
B

This figure shows one reason among others why pea plants (Pisum sativum) are a good species for genetics studies.In reference to information given in the text,pea plants are good for genetics studies because

Correct Answer
verified

If you cross two pea plants,one with green peas and the other with yellow peas,you find all of the offspring have yellow peas.You conclude

Correct Answer
verified

In humans,alleles for each gene are inherited from

Correct Answer
verified

A man with type A blood and a woman with type B blood have a child with type O blood.What are the genotypes of the man and woman?

Correct Answer
verified

Linkage maps are diagrams of nitrogen base sequences on DNA.

Correct Answer
verified

Exam 10: Patterns of Inheritance

Hemophilia A is an X-linked recessive disorder.If a normal man marries a woman who is a carrier,what fraction of their daughters will have hemophilia?

Correct AnswerverifiedShow Answer

In the ABO blood type system the alleles IA,IB,and i produce

Correct AnswerverifiedShow Answer

A gene that produces a protein that is important in more than one biochemical pathway,or other trait,is a ___ gene.

Correct AnswerverifiedShow Answer

For the traits Mendel studied in pea plants,each trait,or phenotype,is expressed in only the dominant or recessive form,depending on the genotype.

Correct AnswerverifiedTrue

Recombinant chromatids have a mix of paternal and maternal alleles due to

Correct AnswerverifiedShow Answer

Mendel observed that some genetic traits seemed to mask others in the pea plants,and used the term ___ to describe these traits.

Correct AnswerverifiedShow Answer

If you conduct a monohybrid cross of two heterozygous Yy pea plants,what percentage of the offspring will be heterozygous?

Correct AnswerverifiedShow Answer

If a pea plant is heterozygous for yellow seeds (Yy) ,which gametes could it produce?

Correct AnswerverifiedShow Answer

Mendel kept detailed records of the genetic traits of parent plants and their offspring plants.Among observations,he found that some traits would be expressed,whenever one particular allele was present,and called this allele

Correct AnswerverifiedShow Answer

Linked genes,by definition,are genes that

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In humans,the condition of male pattern baldness is an example of a(n)

Correct AnswerverifiedShow Answer

A single chromosome has

Correct AnswerverifiedShow Answer

Bollworms raised for decades in a lab without exposure to Bt were ___ while those fed Bt were ___

Correct AnswerverifiedB

A dihybrid cross of linked genes theoretically gives a phenotypic ratio of

Correct AnswerverifiedB

This figure shows one reason among others why pea plants (Pisum sativum) are a good species for genetics studies.In reference to information given in the text,pea plants are good for genetics studies because

Correct AnswerverifiedShow Answer

If you cross two pea plants,one with green peas and the other with yellow peas,you find all of the offspring have yellow peas.You conclude

Correct AnswerverifiedShow Answer

In humans,alleles for each gene are inherited from

Correct AnswerverifiedShow Answer

A man with type A blood and a woman with type B blood have a child with type O blood.What are the genotypes of the man and woman?

Correct AnswerverifiedShow Answer

Linkage maps are diagrams of nitrogen base sequences on DNA.

Correct AnswerverifiedShow Answer

Correct Answer
verified

In the ABO blood type system the alleles I^A,I^B,and i produce

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Bollworms raised for decades in a lab without exposure to Bt were _ while those fed Bt were _

Correct Answer
verified
B

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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