Question 1

Select which of the following results would most closely conform to a test cross of a dyhybrid plant

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) B) and C)
F) A) and D)

Question 2

According to the Law of Segregation allele segregation into gametes is

Accepted Answer

A)   based on whether the allele is dominant or recessive
B)   random
C)   based on whether the individual is homozygotic or heterozygotic
D)   based on whether the individual is male or femaleE) C) and D)
F) All of the above B

Question 3

A(an)  ________ is a variation of a gene.

Accepted Answer

A)   trait
B)   character
C)   gamete
D)   allele
E)   variantF) B) and E)
G) B) and D)

Question 4

________ is the belief that seeds are produced by all parts of the body and transmitted to the next generation.

Accepted Answer

A)   Hippocrates
B)   Pangenesis
C)   Blending
D)   Particulate theory
E)   HomunculusF) A) and D)
G) A) and C)

Question 5

The study of family trees in humans is called a ________ analysis.

Accepted Answer

A)   pedigree
B)   monohybrid
C)   dihybrid
D)   statistical
E)   probabilityF) C) and D)
G) A) and C)

Question 6

If a plant is test-crossed which of the following genes are linked?

Accepted Answer

A)   Flower color and height
B)   Flower color and flower placement
C)   Flower placement and height
D)   None of these genes appear to be linkedE) A) and B)
F) All of the above

Question 7

The Chi-square test is used to prove that a hypothesis is correct.

Accepted Answer

A) True 
 B)False

Question 8

Mendel's work was rediscovered in 1900 by which of the following individual(s) ?

Accepted Answer

A)   Carl Correns
B)   Erich von Tschermak
C)   Hugh de Vries
D)   All of the answers are correctE) None of the above
F) All of the above

Question 9

What was the conclusion from Mendel's two factor crosses?

Accepted Answer

A)   Genes randomly assort into the gametes
B)   Alleles for one gene randomly assort into the gametes
C)   The ratio of the phenotypes of the progeny depends on the phenotype of the male parent
D)   The ratio of the phenotypes of the progeny depends on the phenotype of the female parentE) None of the above
F) A) and B)

Question 10

What is a feature of a pedigree? Check all that apply.

Accepted Answer

A)   It represents the relationship between individuals in successive generations.
B)   They can be used to deduce if a gene may be sex-linked.
C)   They are not useful for human genetic disease studies.D) A) and B)
E) A) and C)

Question 11

If the progeny of a mating of pea plants have the following ratios 1342 smooth seed/green pod, 447 wrinkled seed/yellow pod, 429 smooth seed/ yellow pod, 1361 wrinkled seed/green pod what are the genotypes of the parents?

Accepted Answer

A)   Parent 1: Homozygous for seed shape and pod color Parent 2: Heterozygous for seed shape and homozygous for pod color
B)   Both parents are heterozygous for seed shape and pod color
C)   Parent 1: Heterozygous for seed shape and pod color Parent 2: Homozygous seed shape and heterozygous for pod color
D)   Parent 1: Heterozygous for both seed shape and pod color Parent 2: Homozygous for both seed shape and pod colorE) All of the above
F) B) and C)

Question 12

An allele that produces an inactive enzyme would be classified as what kind of allele?

Accepted Answer

A)   Loss of function
B)   Gain of function
C)   Dominant
D)   These do not occur and therefore there is no classification for them.E) A) and B)
F) A) and C)

Question 13

When Mendel crossed two plants that were heterozygous for a single trait, what was the phenotypic ratio of their offspring?

Accepted Answer

A)   1:2:1
B)   9:3:3:1
C)   3:1
D)   7:4
E)   Varied depending on the traitF) D) and E)
G) B) and D)

Question 14

An individual who has two identical alleles for a trait is said to be ________.

Accepted Answer

A)   homozygous
B)   heterozygous
C)   isozygous
D)   a variantE) All of the above
F) B) and C)

Question 15

Polymerase chain reaction (PCR)  can be used for many different purposes, including determining paternity. PCR amplifies specific DNA sequences from complex mixtures and can be used to amplify sequences that although they may not have any known function may have several unique sizes and these different forms are inherited according to the Law of Segregation. Below is a diagram of an agarose gel of PCR samples from a mother, and several children. Which letters represent children that could be biologically related to the mother?

Accepted Answer

A)   A, B, and C
B)   B, C, and D
C)   A, B, and D
D)   All of the children could be related to the motherE) A) and B)
F) C) and D)

Question 16

Huntington's disease is a fatal syndrome caused by a mutation in the HD gene. The disease has an average age of onset of 35 and the majority of individuals that are affected are heterozygotes. What is the probability that a 25-year-old woman with no symptoms and who is the daughter of a man that has HD and a mother who does not will have a child that will have the mutant HD allele?

Accepted Answer

A)   25%
B)   50%
C)   75%
D)   100%E) B) and D)
F) None of the above

Question 17

Mendel's work with monohybrid crosses provided proof of which of the following?

Accepted Answer

A)   blending theory of inheritance.
B)   particulate theory of inheritance.
C)   chromosomal theory of inheritance
D)   pangenesis
E)   none of the answers are correctF) A) and E)
G) C) and E)

Question 18

If an individual that phenotypically has dominant traits is mated to another individual that also has dominant traits and the progeny have both dominant and recessive traits it indicates that

Accepted Answer

A)   Both parents are heterozygotic
B)   One parent is heterozygotic and one is homozygotic
C)   Both parents are homozygotic
D)   No conclusions can be made about the genotypes of the parentsE) B) and C)
F) None of the above

Question 19

Mendel had experience in the fields of ________ and ________.

Accepted Answer

A)   Physics, mathematics
B)   English
C)   Psychology
D)   Biology
E)   None of the aboveF) C) and E)
G) A) and B) A

Question 20

Two heterozygous plants are bred. The enzyme that controls the phenotype that is being studied is measured in the progeny and represented in the graph below. What are the expected ratios of the different progeny based on their enzyme levels?

Accepted Answer

A)   A: 33.3% B: 33.3%C: 33.3%
B)   A: 50% B: 25%C :25%
C)   A: 25% B:50%C: 25%
D)   A: 25% B: 25%C: 50%E) A) and D)
F) All of the above C

Exam 2: Mendelian Inheritance

Select which of the following results would most closely conform to a test cross of a dyhybrid plant

Correct Answer
verified

According to the Law of Segregation allele segregation into gametes is

Correct Answer
verified
B

A(an) ________ is a variation of a gene.

Correct Answer
verified

________ is the belief that seeds are produced by all parts of the body and transmitted to the next generation.

Correct Answer
verified

The study of family trees in humans is called a ________ analysis.

Correct Answer
verified

If a plant is test-crossed which of the following genes are linked?

Correct Answer
verified

The Chi-square test is used to prove that a hypothesis is correct.

Correct Answer
verified

Mendel's work was rediscovered in 1900 by which of the following individual(s) ?

Correct Answer
verified

What was the conclusion from Mendel's two factor crosses?

Correct Answer
verified

What is a feature of a pedigree? Check all that apply.

Correct Answer
verified

If the progeny of a mating of pea plants have the following ratios 1342 smooth seed/green pod, 447 wrinkled seed/yellow pod, 429 smooth seed/ yellow pod, 1361 wrinkled seed/green pod what are the genotypes of the parents?

Correct Answer
verified

An allele that produces an inactive enzyme would be classified as what kind of allele?

Correct Answer
verified

When Mendel crossed two plants that were heterozygous for a single trait, what was the phenotypic ratio of their offspring?

Correct Answer
verified

An individual who has two identical alleles for a trait is said to be ________.

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Mendel's work with monohybrid crosses provided proof of which of the following?

Correct Answer
verified

If an individual that phenotypically has dominant traits is mated to another individual that also has dominant traits and the progeny have both dominant and recessive traits it indicates that

Correct Answer
verified

Mendel had experience in the fields of and .

Correct Answer
verified
A

Two heterozygous plants are bred. The enzyme that controls the phenotype that is being studied is measured in the progeny and represented in the graph below. What are the expected ratios of the different progeny based on their enzyme levels?

Correct Answer
verified
C

Exam 2: Mendelian Inheritance

Select which of the following results would most closely conform to a test cross of a dyhybrid plant

Correct AnswerverifiedShow Answer

According to the Law of Segregation allele segregation into gametes is

Correct AnswerverifiedB

A(an) ________ is a variation of a gene.

Correct AnswerverifiedShow Answer

________ is the belief that seeds are produced by all parts of the body and transmitted to the next generation.

Correct AnswerverifiedShow Answer

The study of family trees in humans is called a ________ analysis.

Correct AnswerverifiedShow Answer

If a plant is test-crossed which of the following genes are linked?

Correct AnswerverifiedShow Answer

The Chi-square test is used to prove that a hypothesis is correct.

Correct AnswerverifiedShow Answer

Mendel's work was rediscovered in 1900 by which of the following individual(s) ?

Correct AnswerverifiedShow Answer

What was the conclusion from Mendel's two factor crosses?

Correct AnswerverifiedShow Answer

What is a feature of a pedigree? Check all that apply.

Correct AnswerverifiedShow Answer

If the progeny of a mating of pea plants have the following ratios 1342 smooth seed/green pod, 447 wrinkled seed/yellow pod, 429 smooth seed/ yellow pod, 1361 wrinkled seed/green pod what are the genotypes of the parents?

Correct AnswerverifiedShow Answer

An allele that produces an inactive enzyme would be classified as what kind of allele?

Correct AnswerverifiedShow Answer

When Mendel crossed two plants that were heterozygous for a single trait, what was the phenotypic ratio of their offspring?

Correct AnswerverifiedShow Answer

An individual who has two identical alleles for a trait is said to be ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Mendel's work with monohybrid crosses provided proof of which of the following?

Correct AnswerverifiedShow Answer

If an individual that phenotypically has dominant traits is mated to another individual that also has dominant traits and the progeny have both dominant and recessive traits it indicates that

Correct AnswerverifiedShow Answer

Mendel had experience in the fields of ________ and ________.

Correct AnswerverifiedA

Two heterozygous plants are bred. The enzyme that controls the phenotype that is being studied is measured in the progeny and represented in the graph below. What are the expected ratios of the different progeny based on their enzyme levels?

Correct AnswerverifiedC

Correct Answer
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Correct Answer
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B

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Mendel had experience in the fields of and .

Correct Answer
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A

Correct Answer
verified
C