Question 1

Gametes may carry different combinations of alleles because of:

Accepted Answer

A)  Random fertilization
B)  Random fertilization and crossing over
C)  Random alignment of chromosomes
D)  Crossing over and random alignment of chromosomes
E)  Random fertilization and alignment of chromosomesF) A) and B)
G) B) and C)

Question 2

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

Accepted Answer

A)  Green is dominant over yellow
B)  Yellow and green are co-dominant
C)  Yellow is incompletely dominant over green
D)  Yellow is dominant over green
E)  Color is random in pea plantsF) B) and D)
G) B) and E)

Question 3

When Mendel crossed short (tt) pea plants with short pea plants the offspring:

Accepted Answer

A)  Were all tall
B)  Were a mix of tall and short
C)  Were nonexistent
D)  None of these are correct
E)  Were all shortF) B) and E)
G) A) and B)

Question 4

For the traits Mendel studied one allele is completely dominant and the other is completely recessive.

Accepted Answer

A) True 
 B)False

Question 5

When a farmer grows cotton containing the gene for Bt toxin,they often leave a strip of non-Bt cotton around the outside of the field (Figure 10.27) for what reason?

Accepted Answer

A)  To allow some rr bollworm caterpillars to survive
B)  Because the non-Bt cotton grows better
C)  To allow some RR bollworm caterpillars to survive
D)  Because the non-Bt cotton does not drive the moths and caterpillars to extinction
E)  To allow the non-Bt and Bt cotton plants to cross pollinateF) None of the above
G) A) and C)

Question 6

To inherit an autosomal dominant disorder a person could receive the disease causing allele from:

Accepted Answer

A)  The father only, not the mother
B)  The mother only, not the father
C)  The mother or the father
D)  The parent who does not exhibit the disease
E)  All are correctF) None of the above
G) C) and D)

Question 7

When Mendel crossed tall (Tt) plants with tall plants the offspring:

Accepted Answer

A)  Did not grow and reproduce
B)  Were always short
C)  Were always tall
D)  Were always a mix of short and tall
E)  Were sometimes tall, and sometimes a mix of tall and shortF) A) and B)
G) A) and C)

Question 8

A size ordered chart of the chromosomes of a fetus is:

Accepted Answer

A)  Used to detect errors in meiosis
B)  A karyotype
C)  Used to detect chromosomal abnormalities in a developing fetus
D)  All are correct
E)  Used to detect Down syndromeF) B) and E)
G) C) and D)

Question 9

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

Accepted Answer

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

Question 10

Figure 10.28 
-In Figure 10.28,the F2 generation is shown in the graphs at the bottom of the figure.The cluster of bollworms at lower larva weights would have which genotype?

Accepted Answer

A)  RR
B)  rr
C)  Rr or RR
D)  Rr
E)  Rr or rrF) A) and B)
G) C) and D)

Question 11

If an individual is homozygous for a particular trait:

Accepted Answer

A)  Each parent contributed a different allele for that trait
B)  One parent contributed two different alleles for that trait
C)  Each parent contributed the same allele for that trait
D)  One parent contributed two copies of the same allele for that traitE) None of the above
F) A) and C)

Question 12

The pea plant (Pisum sativum) is a good choice for studying heredity because it:

Accepted Answer

A)  Develops slowly
B)  Produces only a few offspring
C)  Is easy to control which plants mate with each other
D)  Has only a few traits that appear in two easily distinguishable forms
E)  All are correctF) A) and B)
G) A) and C)

Question 13

Which gametes can a RRyy plant produce?

Accepted Answer

A)  RR or yy
B)  Ry
C)  RY or ry
D)  RRyy
E)  R or yF) A) and E)
G) C) and D)

Question 14

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

Accepted Answer

A)  Three phenotypes
B)  Two phenotypes
C)  One phenotype
D)  Four phenotypes
E)  Type A and type B blood types onlyF) A) and E)
G) A) and D)

Question 15

When the frequencies of all the phenotypes associated with a polygenic trait are plotted on a graph,they form a characteristic bell-shaped curve.

Accepted Answer

A) True 
 B)False

Question 16

Diagrams depicting family relationships and phenotypes for a genetic disorder are:

Accepted Answer

A)  Linkage maps
B)  Pedigree charts
C)  Karyotypes
D)  Punnett squares
E)  Bell-shaped curvesF) A) and E)
G) A) and C)

Question 17

A portion of DNA that encodes a specific protein is:

Accepted Answer

A)  A gene
B)  A chromosome
C)  A chromatid
D)  A centromere
E)  A kinetochoreF) B) and C)
G) D) and E)

Question 18

Which gametes can a RrYy plant produce?

Accepted Answer

A)  Rr or Yy
B)  RY or ry
C)  RrYy
D)  RY, Ry, rY, or ry
E)  R or rF) All of the above
G) B) and C)

Question 19

Hemophilia A is caused by:

Accepted Answer

A)  An X-linked recessive disorder causing a defective blood clotting protein
B)  An X-linked recessive disorder
C)  A defective blood clotting protein
D)  An X-linked dominant disorder causing a defective blood clotting protein
E)  An X-linked dominant disorderF) A) and B)
G) A) and C)

Question 20

A pea plant with (Tt) as its genotype should be referred to as:

Accepted Answer

A)  The wild type
B)  Homozygous short
C)  Heterozygous tall
D)  Homozygous tall
E)  Heterozygous shortF) D) and E)
G) All of the above

Exam 10: Patterns of Inheritance

Which gametes can a RrYy plant produce?

Correct AnswerverifiedShow Answer

When Mendel crossed short (tt) pea plants with short pea plants the offspring:

Correct AnswerverifiedShow Answer

When a farmer grows cotton containing the gene for Bt toxin,they often leave a strip of non-Bt cotton around the outside of the field (Figure 10.27) for what reason?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Figure 10.28 -In Figure 10.28,the F2 generation is shown in the graphs at the bottom of the figure.The cluster of bollworms at lower larva weights would have which genotype?

Correct AnswerverifiedShow Answer

The pea plant (Pisum sativum) is a good choice for studying heredity because it:

Correct AnswerverifiedShow Answer

A portion of DNA that encodes a specific protein is:

Correct AnswerverifiedShow Answer

When the frequencies of all the phenotypes associated with a polygenic trait are plotted on a graph,they form a characteristic bell-shaped curve.

Correct AnswerverifiedShow Answer

To inherit an autosomal dominant disorder a person could receive the disease causing allele from:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Hemophilia A is caused by:

Correct AnswerverifiedShow Answer

For the traits Mendel studied one allele is completely dominant and the other is completely recessive.

Correct AnswerverifiedShow Answer

When Mendel crossed tall (Tt) plants with tall plants the offspring:

Correct AnswerverifiedShow Answer

Gametes may carry different combinations of alleles because of:

Correct AnswerverifiedShow Answer

Which gametes can a RRyy plant produce?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Diagrams depicting family relationships and phenotypes for a genetic disorder are:

Correct AnswerverifiedShow Answer

If an individual is homozygous for a particular trait:

Correct AnswerverifiedShow Answer

A pea plant with (Tt) as its genotype should be referred to as:

Correct AnswerverifiedShow Answer

A size ordered chart of the chromosomes of a fetus is:

Correct AnswerverifiedShow Answer

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

Correct Answer
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