Question 1

Prenatal testing is currently used to determine:

Accepted Answer

A) SNP location. 
B) personality. 
C) chromosomal abnormalities. 
D) cancer. 
A) SNP location. 
B) personality. 
C) chromosomal abnormalities. 
D) cancer.

Question 2

Using Mendel's garden pea traits of purple and white,if a purple plant crossed with a white plant produces all purple plants,the white allele must be the recessive trait.

Accepted Answer

A) True 
 B)False

Question 3

Which is true regarding the sex chromosomes of females?

Accepted Answer

A) Both of their X chromosomes are active and contribute to the characteristics even if there are two different alleles on the chromosomes. 
B) The Y chromosome becomes inactive. 
C) One of the X chromosomes becomes a condensed Barr body. 
D) They have one X chromosome and one Y chromosome. 
A) Both of their X chromosomes are active and contribute to the characteristics even if there are two different alleles on the chromosomes. 
B) The Y chromosome becomes inactive. 
C) One of the X chromosomes becomes a condensed Barr body. 
D) They have one X chromosome and one Y chromosome.

Question 4

Calico-shell cats are always male because this characteristic is on the X chromosome and males have only one X chromosome.

Accepted Answer

A) True 
 B)False

Question 5

What would be the mRNA sequence given a DNA sequence of GAC?

Accepted Answer

A) CUG 
B) AUT 
C) UAU 
D) GTC 
A) CUG 
B) AUT 
C) UAU 
D) GTC

Question 6

Which of the following disorders matches these symptoms: lack of coordination,poor memory,lack of fine motor control?

Accepted Answer

A) Cystic fibrosis 
B) Sickle cell anemia 
C) Turner syndrome 
D) Huntington's disease 
A) Cystic fibrosis 
B) Sickle cell anemia 
C) Turner syndrome 
D) Huntington's disease

Question 7

What type of blood can the offspring of the parents depicted here have?

Accepted Answer

A) Type A only 
B) Type A and O 
C) Type A, B, and O 
D) All blood types are possible because this only give us the phenotypes, not the specific genotypes 
A) Type A only 
B) Type A and O 
C) Type A, B, and O 
D) All blood types are possible because this only give us the phenotypes, not the specific genotypes

Question 8

The process depicted here is best described by which of the following choices?

Accepted Answer

A) The tetrads are separating to opposite sides. 
B) The cell is completing the first phase of meiosis. 
C) The cell is splitting; cytokinesis. 
D) Genetic material is exchanged between homologous chromosomes. 
A) The tetrads are separating to opposite sides. 
B) The cell is completing the first phase of meiosis. 
C) The cell is splitting; cytokinesis. 
D) Genetic material is exchanged between homologous chromosomes.

Question 9

Which of the following is NOT an example of a single-gene disorder?

Accepted Answer

A) Down syndrome 
B) Cystic fibrosis 
C) Marfan syndrome 
D) SCID 
A) Down syndrome 
B) Cystic fibrosis 
C) Marfan syndrome 
D) SCID

Question 10

The diagram shows that the inherited trait is:

Accepted Answer

A) autosomal dominant. 
B) autosomal recessive. 
C) sex-linked. 
D) sex influenced. 
A) autosomal dominant. 
B) autosomal recessive. 
C) sex-linked. 
D) sex influenced.

Question 11

The field of pharmacogenetics:

Accepted Answer

A) tailors drug treatments to individual genotypes. 
B) tailors drug treatments to individual phenotypes. 
C) prescribes generic treatments to individuals. 
D) prescribes antibiotics to treat individual bacterial infections. 
A) tailors drug treatments to individual genotypes. 
B) tailors drug treatments to individual phenotypes. 
C) prescribes generic treatments to individuals. 
D) prescribes antibiotics to treat individual bacterial infections.

Question 12

The specific alleles carried on the chromosomes constitute the individuals phenotype.

Accepted Answer

A) True 
 B)False

Question 13

What is happening in this picture?

Accepted Answer

A) A ribosome binds the mRNA, along with an initiator tRNA 
B) A stop codon is reached, and the formed polypeptide is released 
C) Transcription 
D) The ribosome slides down the mRNA, "reading" the next codon. 
A) A ribosome binds the mRNA, along with an initiator tRNA 
B) A stop codon is reached, and the formed polypeptide is released 
C) Transcription 
D) The ribosome slides down the mRNA, "reading" the next codon.

Question 14

What would be true about the offspring of two straight-haired Caucasians?

Accepted Answer

A) They would all have straight hair. 
B) Some would have straight hair and some curly. 
C) Some would have wavy hair and some curly. 
D) Some would have straight hair, some wavy, and some curly; they would have to have many children to see this effect. 
A) They would all have straight hair. 
B) Some would have straight hair and some curly. 
C) Some would have wavy hair and some curly. 
D) Some would have straight hair, some wavy, and some curly; they would have to have many children to see this effect.

Question 15

A human cell with 23 pairs of homologous chromosomes is called:

Accepted Answer

A) diploid. 
B) polyploid. 
C) haploid. 
D) multiploid. 
A) diploid. 
B) polyploid. 
C) haploid. 
D) multiploid.

Question 16

In this diagram,the Argobacterium is a(n):

Accepted Answer

A) plasmid. 
B) virus. 
C) host. 
D) vector. 
A) plasmid. 
B) virus. 
C) host. 
D) vector.

Question 17

Hemophilia and colorblindness are:

Accepted Answer

A) dominant traits. 
B) sex-linked traits. 
C) multifactorial traits. 
D) autosomal traits. 
A) dominant traits. 
B) sex-linked traits. 
C) multifactorial traits. 
D) autosomal traits.

Question 18

Human traits are complicated because many are polygenic which means the trait is influenced by many genes.

Accepted Answer

A) True 
 B)False

Question 19

The dihybrid cross shown here will produce how many wrinkled and yellow pea plants?

Accepted Answer

A) 9 
B) 6 
C) 3 
D) 1 
A) 9 
B) 6 
C) 3 
D) 1

Question 20

Messenger RNA is decoded by transfer RNA three bases at a time.The three bases are called a(n)_________ .

Accepted Answer

A) codon 
B) anti-codon 
C) initiators 
D) decoders 
A) codon 
B) anti-codon 
C) initiators 
D) decoders

Exam 20: Inheritance, Genetics, and Molecular Biology

Prenatal testing is currently used to determine:

Using Mendel's garden pea traits of purple and white,if a purple plant crossed with a white plant produces all purple plants,the white allele must be the recessive trait.

Which is true regarding the sex chromosomes of females?

Calico-shell cats are always male because this characteristic is on the X chromosome and males have only one X chromosome.

What would be the mRNA sequence given a DNA sequence of GAC?

Which of the following disorders matches these symptoms: lack of coordination,poor memory,lack of fine motor control?

What type of blood can the offspring of the parents depicted here have?

The process depicted here is best described by which of the following choices?

Which of the following is NOT an example of a single-gene disorder?

The diagram shows that the inherited trait is:

The field of pharmacogenetics:

The specific alleles carried on the chromosomes constitute the individuals phenotype.

What is happening in this picture?

What would be true about the offspring of two straight-haired Caucasians?

A human cell with 23 pairs of homologous chromosomes is called:

In this diagram,the Argobacterium is a(n):

Hemophilia and colorblindness are:

Human traits are complicated because many are polygenic which means the trait is influenced by many genes.

The dihybrid cross shown here will produce how many wrinkled and yellow pea plants?

Messenger RNA is decoded by transfer RNA three bases at a time.The three bases are called a(n)_________ .

What Is Life

Where Do We Come From and Where Do We Fit

Life Has a Unique Chemistry

Organization and Communication

Tissues

The Skeletomuscular System

The Nervous System

The Special Senses

Immunity and the Lymphatic System

Infectious Disease and Epidemiology

Cancer

The Cardiovascular System

The Respiratory System: Movement of Air

Nutrition: You Are What You Eat

The Digestive System

The Urinary System

The Endocrine System and Development

The Reproductive Systems: Maintaining the Species

Pregnancy: Development From Conception to Newborn

Populations Evolve in Ecosystems

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