Question 1

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 linked 
A) Flower color and height 
B) Flower color and flower placement 
C) Flower placement and height 
D) None of these genes appear to be linked

Question 2

What is the probability that an offspring will have an ss/RR genotype from a cross of two Ss/Rr individuals?

Accepted Answer

A) 25% 
B) 6.25% 
C) 3.12% 
D) 12.5% 
A) 25% 
B) 6.25% 
C) 3.12% 
D) 12.5%

Question 3

In humans, patterns of inheritance are often studied using which of the following?

Accepted Answer

A) Dihybrid testcrosses 
B) Production of true-breeding lines 
C) Pedigree analysis 
D) Self-fertilization 
E) None of the answers are correct 
A) Dihybrid testcrosses 
B) Production of true-breeding lines 
C) Pedigree analysis 
D) Self-fertilization 
E) None of the answers are correct

Question 4

Cystic fibrosis is caused by mutations in the CF gene, and there are several different mutations that are known to result in CF disease. The CF mutations behave as recessive alleles to the WT CF allele. If two carriers that have different mutations in their CF genes have children what is the probability that one of their children will have CF disease?

Accepted Answer

A) 100% 
B) 25% 
C) 50% 
D) 75% 
A) 100% 
B) 25% 
C) 50% 
D) 75%

Question 5

If over several generations a trait does not vary in a group of organisms, that group can be called a _______.

Accepted Answer

A) dihybrid 
B) hybrid 
C) true-breeding line 
D) variant 
E) cross-fertilized line 
A) dihybrid 
B) hybrid 
C) true-breeding line 
D) variant 
E) cross-fertilized line

Question 6

In a Punnett square diagram, the outside of the box represents the _________.

Accepted Answer

A) Diploid offspring 
B) Haploid offspring 
C) Diploid gametes 
D) Haploid gametes 
A) Diploid offspring 
B) Haploid offspring 
C) Diploid gametes 
D) Haploid gametes

Question 7

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

Question 8

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

Accepted Answer

A) 1:2:1 
B) 9:3:3:1 
C) 3:1 
D) 1:1 
E) Varied depending on the trait 
A) 1:2:1 
B) 9:3:3:1 
C) 3:1 
D) 1:1 
E) Varied depending on the trait

Question 9

The _____ value indicates the probability that differences between the observed values and the expected values are due to random chance alone.

Accepted Answer

A) P value 
B) Goodness of fit 
C) Degrees of freedom 
D) Empirical approach 
E) None of the answers are correct 
A) P value 
B) Goodness of fit 
C) Degrees of freedom 
D) Empirical approach 
E) None of the answers are correct

Question 10

The Law of Independent Assortment states that

Accepted Answer

A) Two different genes will randomly assort their alleles during the formation of haploid cells 
B) Two different alleles will randomly assort during the formation of haploid cells 
C) Two different genes will NOT randomly assort their alleles during the formation of haploid cells 
D) Two different genes will randomly assort their alleles during the formation of diploid cells 
A) Two different genes will randomly assort their alleles during the formation of haploid cells 
B) Two different alleles will randomly assort during the formation of haploid cells 
C) Two different genes will NOT randomly assort their alleles during the formation of haploid cells 
D) Two different genes will randomly assort their alleles during the formation of diploid cells

Question 11

In a dihybrid testcross, the individual being examined is crossed to which of the following?

Accepted Answer

A) An individual who is homozygous dominant for one trait but not the other 
B) Self-fertilized 
C) An individual who is homozygous recessive for both traits 
D) An individual who is heterozygous for both traits 
A) An individual who is homozygous dominant for one trait but not the other 
B) Self-fertilized 
C) An individual who is homozygous recessive for both traits 
D) An individual who is heterozygous for both traits

Question 12

Which of the following characteristics made the pea plant Pisum sativum an ideal organism for Mendel's studies?

Accepted Answer

A) It has the ability to self-fertilize 
B) It was easy to cross-fertilize one plant with another 
C) It has easily identifiable traits 
D) All of the answers are correct 
A) It has the ability to self-fertilize 
B) It was easy to cross-fertilize one plant with another 
C) It has easily identifiable traits 
D) All of the answers are correct

Question 13

The results of a dihybrid cross of plants is given in the table below. What conclusions would you make?

Accepted Answer

A)  More progeny should be counted since the number of progeny is too low to make this type of analysis 
B)  The chi square value is so close to the p value at 0.05 a conclusion should not be drawn and another mating should be performed 
C)  The results are statistically the same as the expected results 
D)  The results are statistically significantly different than the expected results 
A)  More progeny should be counted since the number of progeny is too low to make this type of analysis 
B)  The chi square value is so close to the p value at 0.05 a conclusion should not be drawn and another mating should be performed 
C)  The results are statistically the same as the expected results 
D)  The results are statistically significantly different than the expected results

Question 14

In a genetic cross, there are n classes of data. What would the degrees of freedom be for a chi-square test on this data?

Accepted Answer

A) n 
B) n + 1 
C) n - 1 
D) 2n + 1 
E) x(n) where x equals the number of individuals in the cross 
A) n 
B) n + 1 
C) n - 1 
D) 2n + 1 
E) x(n) where x equals the number of individuals in the cross

Question 15

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 homozygotic 
B) Both parents are heterozygotic 
C) No conclusions can be made about the genotypes of the parents 
D) One parent is heterozygotic and one is homozygotic 
A) Both parents are homozygotic 
B) Both parents are heterozygotic 
C) No conclusions can be made about the genotypes of the parents 
D) One parent is heterozygotic and one is homozygotic

Question 16

In the biological sciences, the null hypothesis is usually rejected if the P value is _____.

Accepted Answer

A) Greater than 1 
B) Less than 0.30 
C) Less than 0.95 
D) Less than 0.05 
E) Less than 1 
A) Greater than 1 
B) Less than 0.30 
C) Less than 0.95 
D) Less than 0.05 
E) Less than 1

Question 17

What is a feature of a pedigree?

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) Answers it represents the relationship between individuals in successive generations, and they can be used to deduce if a gene may be sex-linked, are correct. 
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) Answers it represents the relationship between individuals in successive generations, and they can be used to deduce if a gene may be sex-linked, are correct.

Question 18

The _______ refers to the genetic composition of an individual.

Accepted Answer

A) character 
B) genotype 
C) phenotype 
D) dominant trait 
E) recessive trait 
A) character 
B) genotype 
C) phenotype 
D) dominant trait 
E) recessive trait

Question 19

If two individuals with different distinct characteristics are mated, their offspring is called a _______.

Accepted Answer

A) strain 
B) true-breeding line 
C) gamete 
D) cross 
E) hybrid 
A) strain 
B) true-breeding line 
C) gamete 
D) cross 
E) hybrid

Question 20

_______ 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) Homunculus 
A) Hippocrates 
B) Pangenesis 
C) Blending 
D) Particulate theory 
E) Homunculus

Exam 2: Mendelian Inheritance

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

What is the probability that an offspring will have an ss/RR genotype from a cross of two Ss/Rr individuals?

In humans, patterns of inheritance are often studied using which of the following?

If over several generations a trait does not vary in a group of organisms, that group can be called a _______.

In a Punnett square diagram, the outside of the box represents the _________.

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

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

The _____ value indicates the probability that differences between the observed values and the expected values are due to random chance alone.

The Law of Independent Assortment states that

In a dihybrid testcross, the individual being examined is crossed to which of the following?

Which of the following characteristics made the pea plant Pisum sativum an ideal organism for Mendel's studies?

The results of a dihybrid cross of plants is given in the table below. What conclusions would you make?

In a genetic cross, there are n classes of data. What would the degrees of freedom be for a chi-square test on this data?

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

In the biological sciences, the null hypothesis is usually rejected if the P value is _____.

What is a feature of a pedigree?

The _______ refers to the genetic composition of an individual.

If two individuals with different distinct characteristics are mated, their offspring is called a _______.

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

Overview of Genetics

Chromosome Transmission During Cell Division and Sexual Reproduction

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria and Bacteriophages

Variation in Chromosome Structure and Number

Molecular Structure of DNA and RNA

Chromosome Organization and Molecular Structure

DNA Replication

Gene Transcription and RNA Modification

Translation of MRNA

Gene Regulation in Bacteria

Gene Regulation in Eukaryotes I: Transcriptional Regulation

Gene Regulation in Eukaryotes II: Epigenetics and Regulation at the RNA Level

Genetics of Viruses

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular Level

DNA Technologies

Biotechnology

Genomics I: Analysis of DNA

Genomics II: Functional Genomics, Proteomics, and Bioinformatics

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Quantitative Genetics

Evolutionary Genetics

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