Question 1

Yellow peas are an example of:

Accepted Answer

A) A phenotype 
B) A genotype 
C) An allele 
D) A gene 
E) A loci 
A) A phenotype 
B) A genotype 
C) An allele 
D) A gene 
E) A loci A

Question 2

Recombinant chromosomes have a mix of paternal and maternal alleles due to:

Accepted Answer

A) Random fertilization 
B) Linkage 
C) Independent assortment 
D) Crossing over 
E) Mutation 
A) Random fertilization 
B) Linkage 
C) Independent assortment 
D) Crossing over 
E) Mutation D

Question 3

In order for a girl to inherit hemophilia A,her parents would have which genotypes?

Accepted Answer

A) XH XH, Xh Y 
B) XH Xh, XH Y 
C) XH Xh, Xh Y 
D) XH XH,XH y 
E) Xh Xh,XH y 
A) XH XH, Xh Y 
B) XH Xh, XH Y 
C) XH Xh, Xh Y 
D) XH XH,XH y 
E) Xh Xh,XH y C

Question 4

When a farmer grows cotton containing the gene for Bt toxin,insects that are resistant (rr)survive and reproduce.These insects were resistant because:

Accepted Answer

A) They already had alleles that made them resistant 
B) The insecticide caused mutations to generate resistant alleles 
C) The insects wanted to survive the insecticide and mutated their DNA 
D) By random chance some insects did not die from the insecticide 
E) The insects were able to produce gametes that were resistant to the insecticide 
A) They already had alleles that made them resistant 
B) The insecticide caused mutations to generate resistant alleles 
C) The insects wanted to survive the insecticide and mutated their DNA 
D) By random chance some insects did not die from the insecticide 
E) The insects were able to produce gametes that were resistant to the insecticide

Question 5

To inherit an autosomal recessive disorder requires a person to receive the disease causing allele from:

Accepted Answer

A) The father only 
B) The mother only 
C) Only the parent having the disease 
D) Only one parent who is homozygous recessive for the disease 
E) Both parents 
A) The father only 
B) The mother only 
C) Only the parent having the disease 
D) Only one parent who is homozygous recessive for the disease 
E) Both parents

Question 6

If you cross two heterozygous Yy pea plants,what fraction of the offspring will be yellow?

Accepted Answer

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

Question 7

An active X chromosome in a female is called a Barr body.

Accepted Answer

A) True 
 B)False

Question 8

A testcross is a mating of an individual with an unknown genotype and an individual that:

Accepted Answer

A) Is heterozygous 
B) Is homozygous dominant 
C) Is homozygous recessive 
D) Has any known genotype 
E) Wild type 
A) Is heterozygous 
B) Is homozygous dominant 
C) Is homozygous recessive 
D) Has any known genotype 
E) Wild type

Question 9

Each gamete arises from a diploid cell containing two sets of homologous chromosomes.

Accepted Answer

A) True 
 B)False

Question 10

In the ABO blood type system the IA allele is _____ with the IB allele.

Accepted Answer

A) Dominant 
B) Co-dominant 
C) Recessive 
D) Homologous 
E) Heterologous 
A) Dominant 
B) Co-dominant 
C) Recessive 
D) Homologous 
E) Heterologous

Question 11

Genotype means:

Accepted Answer

A) The number of gametes in an individual 
B) The combination of alleles in an individual 
C) The number of chromosomes in an individual 
D) The observable expression of the genes in an individual 
E) The genes an individual has 
A) The number of gametes in an individual 
B) The combination of alleles in an individual 
C) The number of chromosomes in an individual 
D) The observable expression of the genes in an individual 
E) The genes an individual has

Question 12

You mate two pea plants that are both AaBb and get a 3:1 phenotype ratio.This suggests:

Accepted Answer

A) Independent assortment occurred 
B) Genes A and B are on the same chromosome 
C) Crossing over occurred 
D) Genes A and B are on different chromosomes 
E) Non-disjunction occurred 
A) Independent assortment occurred 
B) Genes A and B are on the same chromosome 
C) Crossing over occurred 
D) Genes A and B are on different chromosomes 
E) Non-disjunction occurred

Question 13

You are studying genes in yeast and find that the genes can be placed into four groups that tend to be inherited together.From this you can conclude:

Accepted Answer

A) Yeast have four genes 
B) Yeast have four alleles 
C) Yeast produce four cells during meiosis 
D) Yeast have four chromosomes 
E) Yeast have four loci 
A) Yeast have four genes 
B) Yeast have four alleles 
C) Yeast produce four cells during meiosis 
D) Yeast have four chromosomes 
E) Yeast have four loci

Question 14

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

Question 15

Mendel's law of segregation states that the two alleles of each gene are packaged into separate gametes.

Accepted Answer

A) True 
 B)False

Question 16

All gametes contain:

Accepted Answer

A) Two identical sets of chromosomes 
B) Two different sets of chromosomes 
C) One set of chromosomes 
D) One chromosome 
E) Two chromosomes 
A) Two identical sets of chromosomes 
B) Two different sets of chromosomes 
C) One set of chromosomes 
D) One chromosome 
E) Two chromosomes

Question 17

When a farmer grows cotton containing the gene for Bt toxin,insects that are resistant (rr)survive and reproduce.This is an example of:

Accepted Answer

A) Dominance 
B) Genetic drift 
C) Recombination 
D) Independent assortment 
E) Natural selection 
A) Dominance 
B) Genetic drift 
C) Recombination 
D) Independent assortment 
E) Natural selection

Question 18

A recessive allele is one whose effect is masked if a dominant allele is also present.

Accepted Answer

A) True 
 B)False

Question 19

If you cross RrYy and RRyy pea plants,what fraction of the offspring will have round yellow peas? R=round,r=wrinkled,Y=yellow,y=green.

Accepted Answer

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

Question 20

Of all the people who have studied inheritance,the person who made the most lasting impression on the science of genetics is:

Accepted Answer

A) Charles Darwin 
B) Robert Hooke 
C) King George III 
D) Frederick Griffith 
E) Gregor Mendel 
A) Charles Darwin 
B) Robert Hooke 
C) King George III 
D) Frederick Griffith 
E) Gregor Mendel

Exam 10: Patterns of Inheritance

Yellow peas are an example of:

Recombinant chromosomes have a mix of paternal and maternal alleles due to:

In order for a girl to inherit hemophilia A,her parents would have which genotypes?

When a farmer grows cotton containing the gene for Bt toxin,insects that are resistant (rr)survive and reproduce.These insects were resistant because:

To inherit an autosomal recessive disorder requires a person to receive the disease causing allele from:

If you cross two heterozygous Yy pea plants,what fraction of the offspring will be yellow?

An active X chromosome in a female is called a Barr body.

A testcross is a mating of an individual with an unknown genotype and an individual that:

Each gamete arises from a diploid cell containing two sets of homologous chromosomes.

In the ABO blood type system the IA allele is _____ with the IB allele.

Genotype means:

You mate two pea plants that are both AaBb and get a 3:1 phenotype ratio.This suggests:

You are studying genes in yeast and find that the genes can be placed into four groups that tend to be inherited together.From this you can conclude:

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?

Mendel's law of segregation states that the two alleles of each gene are packaged into separate gametes.

All gametes contain:

When a farmer grows cotton containing the gene for Bt toxin,insects that are resistant (rr)survive and reproduce.This is an example of:

A recessive allele is one whose effect is masked if a dominant allele is also present.

If you cross RrYy and RRyy pea plants,what fraction of the offspring will have round yellow peas? R=round,r=wrinkled,Y=yellow,y=green.

Of all the people who have studied inheritance,the person who made the most lasting impression on the science of genetics is:

What Is Life

The Chemistry of Life

The Dynamic Cell

The Energy of Life

Photosynthesis

How Cells Release Energy

Dna Structure and Gene Function

Dna Replication, mitosis and the Cell Cycle

Sexual Reproduction and Meiosis

The Forces of Evolutionary Change

Evidence for Evolution

Speciation and Extinction

The Origin and History of Life

Viruses

Bacteria and Archaea

Protists

Plants

Fungi

Animals

Plant Form and Function

Plant Nutrition and Transport

Reproduction and Development of Flowering Plants

Animal Tissues, organ Systems and Homeostasis

The Nervous System

The Senses Content

The Endocrine System

The Musculoskeletal System

The Circulatory System

The Respiratory System

Digestion and Animal Nutrition

Regulation of Temperature and Body Fluids

The Immune System

Animal Reproduction and Development

Animal Behavior

Populations

Communities and Ecosystems

The Biosphere

Conserving Biodiversity

Filters

In the ABO blood type system the I^A allele is _____ with the I^B allele.