Question 1

The allele for white eyes is located at loci 12 while the allele for hairy body is located at loci 16 on one chromosome. The allele for red eyes is located at loci 15 while the allele for normal body is located at loci 17 on a second chromosome. Which allele combination has the greater map distance?

Accepted Answer

A)   white eyes and hairy body
B)   white eyes and normal body
C)   red eyes and normal body
D)   red eyes and hairy body
E)   white eyes and red eyesF) A) and B)
G) None of the above A

Question 2

Morgan breeds and sells snakes. He knows that he can make the most money by breeding and selling albino snakes. Albinism is a recessive trait. His female albino corn snake just produced 6 offspring. Two displayed normal coloration and 4 were albino. What do you know about the genotype of the father?

Accepted Answer

A)   He must be homozygous dominant.
B)   He must be heterozygous.
C)   He must be homozygous recessive.
D)   He could be either heterozygous or homozygous dominant.
E)   There is not enough information to determine the father's genotype.F) D) and E)
G) None of the above

Question 3

If a true-breeding tall pea plant is crossed with a tall pea plant of unknown parentage. Which of the following is correct?

Accepted Answer

A)   All of the offspring (F1)  will be short.
B)   Over several generations, no short individuals will appear.
C)   Some short individuals may appear in the F2 generation.
D)   It is impossible to determine based on the information provided.
E)   Some of the F1 generation will be short.F) A) and B)
G) C) and D) C

Question 4

Referring to the figure shown here, which of the following are homologous chromosomes?

Accepted Answer

A)   Figure B with one chromosome having both capital and lowercase letters.
B)   Figure B as is.
C)   Figure A with different letters on one of the chromosomes.
D)   Figure A with the same letters but the order randomized.
E)   Figure B with different letters on each chromosome.F) B) and E)
G) B) and D)

Question 5

In a monohybrid cross, how many traits are examined?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) D) and E)
G) A) and E)

Question 6

Morgan breeds and sells snakes. He knows that he can make the most money by breeding and selling albino snakes. Albinism is a recessive trait. His female albino corn snake just produced 6 offspring. Two displayed normal coloration and 4 were albino. What is the chance that another offspring produced by the same parents will be albino?

Accepted Answer

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

Question 7

Morgan breeds and sells snakes. He knows that he can make the most money by breeding and selling albino snakes. Albinism is a recessive trait. His female albino corn snake just produced 6 offspring. Two displayed normal coloration and 4 were albino. What do you know about the genotype of the baby snakes with the normal coloration?

Accepted Answer

A)   They must be homozygous dominant.
B)   They must be homozygous recessive.
C)   They must be heterozygous.
D)   They could be either heterozygous or homozygous dominant.
E)   There is not enough information to determine their genotype but we know that they must carry the dominant allele.F) A) and E)
G) A) and D)

Question 8

A red-eyed male Drosophila mates with a red-eyed female Drosophila. One of the female's parents had white eyes. What proportion of the male offspring will have white eyes?

Accepted Answer

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

Question 9

If an individual expresses a dominant disease, which of the following is true?

Accepted Answer

A)   All of his children will always inherit the disease.
B)   He will pass this disease to all of his daughters.
C)   There is at least a 50% probability that his children will inherit the disease.
D)   There is a 100% possibility that his sons will inherit this disease.
E)   None of his children will inherit the disease unless his wife also has the disease.F) All of the above
G) B) and D) C

Question 10

A woman with Type AB blood marries a man with Type B blood. If they have children, what are all the possible blood types for these individuals?

Accepted Answer

A)   AB only
B)   AB, AA, AO, and BO
C)   AB, BB, AO, and BO
D)   BB only
E)   AA, BB, and ABF) A) and B)
G) A) and E)

Question 11

Alleles A, B, and C are found on the same chromosome with alleles a, b, and c on the homologous chromosome. If alleles A and C on one homologous chromosome, and a and c on the other homologous chromosome are typically inherited together, this suggests that

Accepted Answer

A)   A and C alleles are closer together than the a and c alleles.
B)   the order of the alleles on one homologous chromosome is A, B, C.
C)   alleles a and c are closer together than alleles c and b.
D)   a recombinant gamete would contain alleles A, B, and C.
E)   crossing over often occurs between sister chromatids.F) All of the above
G) A) and E)

Question 12

A long-winged Drosophila female with a gray body mates with a black, short-winged male fly. The phenotypic ratio of the offspring is 1:1:1:1. What is the genotype of the female fly?

Accepted Answer

A)   LlGg
B)   LLGG
C)   llgg
D)   LLgg
E)   llGGF) A) and B)
G) A) and C)

Question 13

Martha has widow's peak and attached earlobes. Martha's dad had a straight hairline and unattached earlobes. If Martha marries a man that is heterozygous for both traits, what is the probability that they will have a child with a widow's peak and attached earlobes?

Accepted Answer

A)   1/16
B)   1/8
C)   1/4
D)   1/2
E)   3/4F) A) and D)
G) D) and E)

Question 14

If a homozygous black bull is mated with a homozygous white cow and the calf is gray, this would be an example of ___________. However, if the calf has black and white spots this would be an example of _______________.

Accepted Answer

A)   incomplete dominance; a sex-linked trait
B)   complete dominance; polygenic trait
C)   codominance; homology
D)   incomplete dominance; codominance
E)   a sex-linked trait; a recessive traitF) D) and E)
G) C) and D)

Question 15

Alleles are

Accepted Answer

A)   dominant traits.
B)   recessive traits.
C)   2 versions of the same trait.
D)   alternate versions of the same trait.
E)   exact copies of the same trait.F) C) and D)
G) D) and E)

Question 16

Which of the following is NOT true about blood types?

Accepted Answer

A)   IA represents antigen A on red blood cells.
B)   A person with AB blood has two different antigens on his red blood cells.
C)   The allele representing blood type O is recessive.
D)   This is an example of a multiple allele trait and an individual can have up to 3 different alleles.
E)   Blood types exhibit codominance and are also an example of a multiple allele trait.F) B) and E)
G) C) and D)

Question 17

During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to

Accepted Answer

A)   the rule of multiplication.
B)   the law of segregation.
C)   the law of probability.
D)   gene theory.
E)   the law of independent assortment.F) C) and D)
G) A) and E)

Question 18

Parents with the dominant phenotype cannot have offspring with the recessive phenotype.

Accepted Answer

A)   True because the dominant gene must be passed down from each parent.
B)   True because at least one dominant gene will be passed down from each parent.
C)   False because one parent could carry the recessive allele.
D)   False because both parents could carry the recessive allele.
E)   True because both parents have the dominant allele.F) B) and D)
G) A) and D)

Question 19

A cow with black and white patches is produced from a white bull and a black cow. This is an example of

Accepted Answer

A)   incomplete dominance.
B)   Codominance.
C)   dominance/recessive trait.
D)   Polygenic.
E)   Pleiotropy.F) A) and B)
G) A) and C)

Question 20

What does true-breeding mean?

Accepted Answer

A)   The organism has 2 parents.
B)   The organism can be cross-pollinated.
C)   The organism is self-pollinated.
D)   The organism is easy to cultivate.
E)   The organism cannot be cultivated.F) A) and E)
G) B) and C)

Exam 10: Patterns of Inheritance

The allele for white eyes is located at loci 12 while the allele for hairy body is located at loci 16 on one chromosome. The allele for red eyes is located at loci 15 while the allele for normal body is located at loci 17 on a second chromosome. Which allele combination has the greater map distance?

Correct Answer
verified
A

Morgan breeds and sells snakes. He knows that he can make the most money by breeding and selling albino snakes. Albinism is a recessive trait. His female albino corn snake just produced 6 offspring. Two displayed normal coloration and 4 were albino. What do you know about the genotype of the father?

Correct Answer
verified

If a true-breeding tall pea plant is crossed with a tall pea plant of unknown parentage. Which of the following is correct?

Correct Answer
verified
C

Referring to the figure shown here, which of the following are homologous chromosomes?

Correct Answer
verified

In a monohybrid cross, how many traits are examined?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A red-eyed male Drosophila mates with a red-eyed female Drosophila. One of the female's parents had white eyes. What proportion of the male offspring will have white eyes?

Correct Answer
verified

If an individual expresses a dominant disease, which of the following is true?

Correct Answer
verified
C

A woman with Type AB blood marries a man with Type B blood. If they have children, what are all the possible blood types for these individuals?

Correct Answer
verified

Alleles A, B, and C are found on the same chromosome with alleles a, b, and c on the homologous chromosome. If alleles A and C on one homologous chromosome, and a and c on the other homologous chromosome are typically inherited together, this suggests that

Correct Answer
verified

A long-winged Drosophila female with a gray body mates with a black, short-winged male fly. The phenotypic ratio of the offspring is 1:1:1:1. What is the genotype of the female fly?

Correct Answer
verified

Martha has widow's peak and attached earlobes. Martha's dad had a straight hairline and unattached earlobes. If Martha marries a man that is heterozygous for both traits, what is the probability that they will have a child with a widow's peak and attached earlobes?

Correct Answer
verified

If a homozygous black bull is mated with a homozygous white cow and the calf is gray, this would be an example of _. However, if the calf has black and white spots this would be an example of _____.

Correct Answer
verified

Alleles are

Correct Answer
verified

Which of the following is NOT true about blood types?

Correct Answer
verified

During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to

Correct Answer
verified

Parents with the dominant phenotype cannot have offspring with the recessive phenotype.

Correct Answer
verified

A cow with black and white patches is produced from a white bull and a black cow. This is an example of

Correct Answer
verified

What does true-breeding mean?

Correct Answer
verified

Exam 10: Patterns of Inheritance

Correct AnswerverifiedA

Correct AnswerverifiedShow Answer

If a true-breeding tall pea plant is crossed with a tall pea plant of unknown parentage. Which of the following is correct?

Correct AnswerverifiedC

Referring to the figure shown here, which of the following are homologous chromosomes?

Correct AnswerverifiedShow Answer

In a monohybrid cross, how many traits are examined?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A red-eyed male Drosophila mates with a red-eyed female Drosophila. One of the female's parents had white eyes. What proportion of the male offspring will have white eyes?

Correct AnswerverifiedShow Answer

If an individual expresses a dominant disease, which of the following is true?

Correct AnswerverifiedC

A woman with Type AB blood marries a man with Type B blood. If they have children, what are all the possible blood types for these individuals?

Correct AnswerverifiedShow Answer

Alleles A, B, and C are found on the same chromosome with alleles a, b, and c on the homologous chromosome. If alleles A and C on one homologous chromosome, and a and c on the other homologous chromosome are typically inherited together, this suggests that

Correct AnswerverifiedShow Answer

A long-winged Drosophila female with a gray body mates with a black, short-winged male fly. The phenotypic ratio of the offspring is 1:1:1:1. What is the genotype of the female fly?

Correct AnswerverifiedShow Answer

Martha has widow's peak and attached earlobes. Martha's dad had a straight hairline and unattached earlobes. If Martha marries a man that is heterozygous for both traits, what is the probability that they will have a child with a widow's peak and attached earlobes?

Correct AnswerverifiedShow Answer

If a homozygous black bull is mated with a homozygous white cow and the calf is gray, this would be an example of ___________. However, if the calf has black and white spots this would be an example of _______________.

Correct AnswerverifiedShow Answer

Alleles are

Correct AnswerverifiedShow Answer

Which of the following is NOT true about blood types?

Correct AnswerverifiedShow Answer

During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to

Correct AnswerverifiedShow Answer

Parents with the dominant phenotype cannot have offspring with the recessive phenotype.

Correct AnswerverifiedShow Answer

A cow with black and white patches is produced from a white bull and a black cow. This is an example of

Correct AnswerverifiedShow Answer

What does true-breeding mean?

Correct AnswerverifiedShow Answer

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

If a homozygous black bull is mated with a homozygous white cow and the calf is gray, this would be an example of _. However, if the calf has black and white spots this would be an example of _____.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified